It would be irresponsible to write this guide without addressing the elephant in the room.

Auto FH3 V10 is a revolutionary software designed to enhance your driving experience. With its advanced algorithms and user-friendly interface, this software allows you to optimize your vehicle's performance, fuel efficiency, and safety features. Whether you're a car enthusiast or a daily driver, Auto FH3 V10 has got you covered.

In the vanilla game, engine swaps are limited. Modding allows you to bypass those limits:

The modded car will sound like a V10, rev higher, and have altered torque curves. However, the game’s physics engine still uses the original car’s weight and aero unless further modded.