Simplify the following text for a Grade 7 native English-speaking person.
Original: However , where the chassis and engine are constructed by different entities the car 's make comprises both ( e.g. McLaren-Mercedes , Lotus-Climax etc. ) , with the name of the chassis constructor being placed before that of the engine constructor .
Simplified: So the make is McLaren-Mercedes . The name of the chassis constructor is always placed before the engine constructor .