9. Jetta TDI: Diesel Efficiency Before Its Time

The Jetta TDI quietly delivered outstanding fuel economy and impressive durability, thanks to its advanced turbo-diesel engine. Long before fuel efficiency became a buzzword, the Jetta TDI was a go-to choice for high-mileage drivers, easily achieving remarkable distances between fill-ups. Its reputation for longevity and frugality made it beloved by commuters and road warriors alike (Edmunds).