BMW 5 Series 2007-2010 523i

Engine type in car refers to the type of engine that powers the vehicle. There are many different types of car engines, but the most common are petrol (gasoline) and diesel engines

The displacement of an engine is the total volume of all of the cylinders in the engine. Measured in cubic centimetres (cc)

Power dictates the performance of an engine. It's measured in horsepower (bhp) or metric horsepower (PS). More is better.

The load-carrying ability of an engine, measured in Newton-metres (Nm) or pound-foot (lb-ft). More is better.

ICE engines have one or more cylinders. More cylinders typically mean more smoothness and more power, but it also means more moving parts and less fuel efficiency.

The number of intake and exhaust valves in each engine cylinder. More valves per cylinder means better engine breathing and better performance but it also adds to cost.

Responsible for delivering fuel from the fuel tank into your internal combustion engine (ICE). More sophisticated systems give you better mileage.

Bore is the diameter of the cylinder, and stroke is the distance that the piston travels from the top of the cylinder to the bottom. Multiplying these two figures gives you the cubic capacity (cc) of an engine.

The amount of pressure that an engine can generate in its cylinders before combustion. More compression = more power.

The component containing a set of gears that supply power from the engine to the wheels. It affects speed and fuel efficiency.

The total amount of fuel the car's tank can hold. It tells you how far the car can travel before needing a refill.

The maximum speed a car can be driven at. It indicates its performance capability.

A measure of how much air pressure a car faces as it moves through the air. It affects the fuel efficiency and the speed of the car.

The system of springs, shock absorbers, and linkages that connects the front wheels to the car body. Reduces jerks over bad surfaces and affects handling.

The system of springs, shock absorbers, and linkages that connects the rear wheels to the car body. It impacts ride quality and stability.

The mechanism by which the car's steering operates, such as manual, power-assisted, or electric. It affecting driving ease.

Specifies the type of braking system used on the front wheels of the car, like disc or drum brakes. The type of brakes determines the stopping power.

Specifies the type of braking system used on the rear wheels, like disc or drum brakes, affecting the car's stopping power.

The rate at which the car can increase its speed from a standstill. It is a key performance indicator.

The rate at which the car can increase its speed from a standstill. It is a key performance indicator.

The maximum number of people that can legally and comfortably sit in a car.

The total number of doors in the car, including the boot if it's considered a door. It affects access and convenience.

The diameter of the car's alloy wheels. Alloy wheels are lighter and better looking than standard wheels, not including tyres.

The dimensions of the car's tyres indicating their width, height, and diameter. Important for grip and performance.

Tells you the kind of tyres fitted to the car, such as all-season, summer, or winter. It affects grip and performance in different conditions.

The diameter of the car's wheels, not including the tyres. It affects the car's ride, handling, and appearance.