Designing a car mechanic is a form of art and something that will work in a car for years to come if it’s crafted carefully. Some of the engines have been designed so articulately that they function even today, without any modifications. These are the cars worth investing in, and sometimes a lot of people consider the machine as one of the main pros when selecting their vehicle. The best car engines are Fiat 875cc TwinAir, BMW 4.4-litre Valvetronic, Honda 1.0-litre IMA, Mazda Renesis Rotary, Toyota 1.5-litre Hybrid Synergy Drive, Volkswagen 1.4-litre TSI twin-charger, Ferrari 3.9-litre twin-turbo V8, Chevrolet Bolt 150-kW electric propulsion system, Chrysler Pacifica Hybrid, Ford Mustang GT, Honda Clarity Fuel Cell and  Infiniti Q50.