The phrase "diesel cars" refers to vehicles that run on a type of fuel called diesel, which is different from the regular gasoline used in most cars. Full definition
A German court has ruled that cities in the country have the legal right to ban the use of diesel cars under certain conditions. (climateactionprogramme.org)
All that instant torque is being delivered to the rear wheels and the car's acceleration is impressive, more so than a traditional gasoline or diesel car with roughly the same horsepower. (autoweek.com)