Falsehoods about cars that developers believe in

Car has four wheels.

Nope. There is Reliant Robin.

If car has more than 4 wheels it's a bus or a truck

Nope. There is Mercedes-Benz G63 AMG 6x6.

Car has one engine

Nope. There is Model S Performance All-Wheel Drive Dual Motor

Car has one type of fuel

Nope. There are hybrid cars that have an electric engine in addition to the standard diesel/petrol engine.

There is nothing else fuel-related if it's not hybrid

Nope. There is DEF/AdBlue

Car consumtion is measured in either metric (l/100km) or imperial (mpg) units

Nope. There are electric cars with kW/100km and hydrogen powered cards with kg/100km.

Car height is one value

Nope. There are camper vans with elevating roofs and cars with height adjustable suspension

Hatchbacks have 3 or 5 doors

Nope. There is Hyundai Veloster which has 4 doors. There is 1 on driver's side, 2 on passenger's side and a rear door.