It's said that the UK and the US are two countries separated by a common language, and this certainly applies when it comes to parts of the car:
| UK | US |
| chassis | frame |
| wing | fender |
| sill | rocker panel |
| bonnet | hood |
| boot | trunk |
| windscreen | windshield |
| quarterlight | wing window |
| gearbox | transmission |
| exhaust | muffler |
| indicators | blinkers |
As I learn more - as I inevitably will - I'll add to this list.