13. Renault Clio dCi 85 (2005)
The Renault Clio dCi 85 earned a reputation across Europe for its remarkable efficiency, achieving 65 mpg with its advanced diesel engine.
Practical, affordable, and reliable, this hatchback became a top choice for drivers seeking to cut fuel costs without sacrificing everyday usability.
The Clio dCi 85 demonstrated how mainstream cars could push the envelope of economy in real-world conditions.
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