7. Citroën CX Diesel

The Citroën CX Diesel was a marvel of French automotive engineering, pairing innovative hydropneumatic suspension with an unapologetically loud diesel engine.
While its aerodynamic styling and smooth ride quality were cutting-edge for its time, the CX Diesel was equally known for its characteristic diesel rattle, a tractor-like sound contrasting sharply with its futuristic design.
Yet, beneath the noisy veneer was an incredibly robust powerplant, capable of effortlessly logging hundreds of thousands of miles, often under challenging driving conditions.
Today, enthusiasts fondly remember the CX Diesel for its unique personality—combining avant-garde design, mechanical durability, and a distinctly audible diesel heartbeat.