A mid-engine automobile is a vehicle that has its engine mounted in the middle of the vehicle, between the front and rear axles. It offers advantages over traditional front-engine designs including improved handling, weight distribution, and overall performance. Mid-engines are used in many types of vehicles such as sports cars, supercars, race cars, and even some luxury sedans.

The placement of the engine between the axles provides better balance and stability than a front-engine design, allowing for quicker acceleration and cornering. The weight distribution also helps improve braking performance by reducing nose dive under heavy braking. Additionally, a mid-engine car can take advantage of aerodynamic downforce effects to improve handling at high speeds.

Mid-engine designs require careful engineering to ensure proper packaging of components like radiators, exhaust systems, fuel tanks, transmissions, etc., as well as providing adequate cooling for both the engine and transmission. Consequently, mid-engine cars tend to be more expensive than their front-engine counterparts due to specialized components needed to make them work properly.

Overall, a mid-engine design offers improved performance over a traditional front-engine layout due to better weight distribution and improved aerodynamics. However, they require careful engineering and specialized components that increase costs compared to conventional layouts.