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Cars That Secretly Share the Same Engine

Kalterina January 29, 2026

In the automotive industry, it’s not uncommon for different car models to share the same engine. This practice allows manufacturers to streamline production, reduce costs, and ensure consistent performance across various vehicles. While some engine-sharing arrangements are well-known, others might surprise even the most dedicated car enthusiasts. Understanding these shared powertrains offers insight into the complexities of automotive engineering and the strategic decisions behind vehicle development.

One notable example is the collaboration between Mazda and Ford. In the early 2000s, Mazda developed the L-series engine, a mid-sized inline 4-cylinder gasoline engine. This engine was co-developed with Ford, which owned a controlling stake in Mazda at the time. The L-series engine, ranging from 1.8 to 2.5 liters, was used in various Mazda models and also found its way into Ford vehicles, including the Focus and Escape. This partnership highlights how shared engine technology can benefit multiple brands within the same automotive group. (en.wikipedia.org)

Another intriguing instance involves the Toyota Supra and the BMW Z4. Despite their distinct brand identities, these two sports cars share the same engine. The 2025 Toyota Supra 2.0 is equipped with a 2.0-liter turbocharged inline-four engine, the BMW B48, which is also found in the BMW X1 xDrive28i. This collaboration between Toyota and BMW underscores the blending of engineering expertise to create high-performance vehicles. (motorbiscuit.com)

These examples illustrate that behind the unique exteriors and brand names, many vehicles share the same engine technology. This practice not only optimizes manufacturing processes but also ensures that consumers benefit from proven and reliable powertrains across different car models.

Details about Section 1 of Cars That Secretly Share the Same Engine

Section 1
A historic scene capturing the original Lower Ticino Bridge with Giornico in the background, featuring a steam locomotive and flatcars crossing before 1878. (commons.wikimedia.org) | Generated by Google Gemini

The collaboration between Mazda and Ford in developing the L-series engine exemplifies how automotive manufacturers can share technology to enhance performance and efficiency across different vehicle models. This partnership led to the creation of a versatile engine family that has been utilized in various Mazda and Ford vehicles, showcasing the benefits of shared engineering resources.

The L-series engine, introduced in 2001, is a mid-sized inline 4-cylinder gasoline engine designed by Mazda as part of their MZR family. It ranges in displacement from 1.8 to 2.5 liters and serves as the evolution of Mazda’s previous F-engine. The engine features a chain-driven DOHC, 16-valve valvetrain with an all-aluminum block construction and cast-iron cylinder liners. Notable features include intake cam-phasing Variable Valve Timing (VVT), Variable Tumble Control System (VTCS), Variable Intake Control System (VICS), a stainless steel 4:1 exhaust manifold, and a lower main bearing cage for increased block rigidity. Direct-injection is available on the 2.0-liter LF-VD and the turbocharged L3-VDT engine introduced in 2006 for the Mazdaspeed lineup of vehicles. (en.wikipedia.org)

Ford, which owned a controlling stake in Mazda at the time, co-developed the L-series engine. Ford uses it as their 1.8L to 2.5L Duratec world engine and holds a license to develop engines based on the L-series in perpetuity. This collaboration allowed Ford to incorporate the L-series engine into several of their models, including the Focus, Escape, and Fusion, benefiting from Mazda’s engineering advancements. (en.wikipedia.org)

The L-series engine’s design and features have contributed to its widespread use and adaptability across different vehicle platforms. Its performance and efficiency have made it a popular choice for both Mazda and Ford, highlighting the advantages of shared engine technology in the automotive industry. (en.wikipedia.org)

Details about Section 2 of Cars That Secretly Share the Same Engine

Section 2
A vintage Ford Model T converted into a section car, showcasing its unique wooden passenger body. | Generated by Google Gemini

The collaboration between Toyota and BMW in developing the fifth-generation Toyota Supra and the BMW Z4 has led to the sharing of significant components, including the engine. This partnership has resulted in two distinct sports cars that, despite their unique brand identities and design philosophies, share a common powertrain.

Both the Toyota Supra and the BMW Z4 are equipped with BMW’s B58 engine, a 3.0-liter turbocharged inline-six. In the Supra, this engine produces 335 horsepower and 365 lb-ft of torque, while in the Z4 M40i, it delivers 382 horsepower and 369 lb-ft of torque. Despite these differences in output, the engine’s fundamental design remains consistent across both models. (roadandtrack.com)

The decision to use the B58 engine was a result of Toyota’s desire to incorporate a straight-six engine into the Supra, a characteristic that had been a hallmark of previous Supra generations. However, Toyota did not have a current inline-six engine in production at the time. BMW, renowned for its expertise in straight-six engines, provided the B58, which met Toyota’s performance and reliability standards. (motortrend.com)

In addition to the shared engine, both vehicles utilize an eight-speed automatic transmission sourced from ZF, a leading manufacturer of automotive transmissions. This transmission is paired with a rear-wheel-drive layout, contributing to the dynamic driving experience characteristic of both sports cars. (topspeed.com)

The collaboration between Toyota and BMW extended beyond the engine and transmission. The chassis and platform of the Supra and Z4 are also shared, with both vehicles being produced at the Magna Steyr plant in Graz, Austria. This shared production facility underscores the depth of the partnership between the two manufacturers. (motorauthority.com)

Despite these shared components, Toyota and BMW have tuned the Supra and Z4 differently to align with their respective brand identities. The Supra is positioned as a more track-focused vehicle, while the Z4 offers open-top motoring. These distinctions are evident in the vehicles’ handling characteristics, suspension setups, and interior designs. (gaukmotorbuzz.com)

In summary, the Toyota Supra and BMW Z4 exemplify how automotive manufacturers can collaborate to share engine technology while maintaining distinct brand identities and design philosophies. This partnership has resulted in two high-performance sports cars that, despite their similarities, offer unique driving experiences to enthusiasts.

Details about Section 3 of Cars That Secretly Share the Same Engine

Section 3
A sleek lineup of Volvo cars showcased in a modern showroom, highlighting their innovative design and technology. | Generated by Google Gemini

In the automotive industry, it’s not uncommon for different car models to share the same engine. This practice allows manufacturers to streamline production, reduce costs, and ensure consistent performance across various vehicles. While some engine-sharing arrangements are well-known, others might surprise even the most dedicated car enthusiasts. Understanding these shared powertrains offers insight into the complexities of automotive engineering and the strategic decisions behind vehicle development.

One notable example is the collaboration between Mazda and Ford. In the early 2000s, Mazda developed the L-series engine, a mid-sized inline 4-cylinder gasoline engine. This engine was co-developed with Ford, which owned a controlling stake in Mazda at the time. The L-series engine, ranging from 1.8 to 2.5 liters, was used in various Mazda models and also found its way into Ford vehicles, including the Focus and Escape. This partnership highlights how shared engine technology can benefit multiple brands within the same automotive group. (en.wikipedia.org)

Another intriguing instance involves the Toyota Supra and the BMW Z4. Despite their distinct brand identities, these two sports cars share the same engine. The 2025 Toyota Supra 2.0 is equipped with a 2.0-liter turbocharged inline-four engine, the BMW B48, which is also found in the BMW X1 xDrive28i. This collaboration between Toyota and BMW underscores the blending of engineering expertise to create high-performance vehicles. (motorbiscuit.com)

These examples illustrate that behind the unique exteriors and brand names, many vehicles share the same engine technology. This practice not only optimizes manufacturing processes but also ensures that consumers benefit from proven and reliable powertrains across different car models.

Details about Section 4 of Cars That Secretly Share the Same Engine

Section 4
A sleek, modern car parked in a sunlit driveway, showcasing its polished exterior and stylish design. | Generated by Google Gemini

In the automotive industry, it’s not uncommon for different car models to share the same engine. This practice allows manufacturers to streamline production, reduce costs, and ensure consistent performance across various vehicles. While some engine-sharing arrangements are well-known, others might surprise even the most dedicated car enthusiasts. Understanding these shared powertrains offers insight into the complexities of automotive engineering and the strategic decisions behind vehicle development.

One notable example is the collaboration between Mazda and Ford. In the early 2000s, Mazda developed the L-series engine, a mid-sized inline 4-cylinder gasoline engine. This engine was co-developed with Ford, which owned a controlling stake in Mazda at the time. The L-series engine, ranging from 1.8 to 2.5 liters, was used in various Mazda models and also found its way into Ford vehicles, including the Focus and Escape. This partnership highlights how shared engine technology can benefit multiple brands within the same automotive group. (en.wikipedia.org)

Another intriguing instance involves the Toyota Supra and the BMW Z4. Despite their distinct brand identities, these two sports cars share the same engine. The 2025 Toyota Supra 2.0 is equipped with a 2.0-liter turbocharged inline-four engine, the BMW B48, which is also found in the BMW X1 xDrive28i. This collaboration between Toyota and BMW underscores the blending of engineering expertise to create high-performance vehicles. (motorbiscuit.com)

These examples illustrate that behind the unique exteriors and brand names, many vehicles share the same engine technology. This practice not only optimizes manufacturing processes but also ensures that consumers benefit from proven and reliable powertrains across different car models.

Conclusion

Conclusion
A vibrant scene from Pixar’s “Cars,” showcasing Lightning McQueen racing through Radiator Springs. | Generated by Google Gemini

In the automotive industry, it’s not uncommon for different car models to share the same engine. This practice allows manufacturers to streamline production, reduce costs, and ensure consistent performance across various vehicles. While some engine-sharing arrangements are well-known, others might surprise even the most dedicated car enthusiasts. Understanding these shared powertrains offers insight into the complexities of automotive engineering and the strategic decisions behind vehicle development.

One notable example is the collaboration between Mazda and Ford. In the early 2000s, Mazda developed the L-series engine, a mid-sized inline 4-cylinder gasoline engine. This engine was co-developed with Ford, which owned a controlling stake in Mazda at the time. The L-series engine, ranging from 1.8 to 2.5 liters, was used in various Mazda models and also found its way into Ford vehicles, including the Focus and Escape. This partnership highlights how shared engine technology can benefit multiple brands within the same automotive group. (en.wikipedia.org)

Another intriguing instance involves the Toyota Supra and the BMW Z4. Despite their distinct brand identities, these two sports cars share the same engine. The 2025 Toyota Supra 2.0 is equipped with a 2.0-liter turbocharged inline-four engine, the BMW B48, which is also found in the BMW X1 xDrive28i. This collaboration between Toyota and BMW underscores the blending of engineering expertise to create high-performance vehicles. (motorbiscuit.com)

These examples illustrate that behind the unique exteriors and brand names, many vehicles share the same engine technology. This practice not only optimizes manufacturing processes but also ensures that consumers benefit from proven and reliable powertrains across different car models.

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