Might I suggest a new subject? If everyone agrees, I think Car Mechanic might be a good one to try.

"Here goes nothing!"

Turn that engine off! I'm allergic to exhaust fumes!

You have a flat what? sorry sir but we only fit round ones.

Diesel, petrol? What the hell, they're both fuel aren't they?

Do you realise that for every mile you drive, a baby dies?

I would recommend changing the brakes as the cars stopping distances are a bit long when we tested, don't worry about the bumper as that can be replaced but we will have to bill you for the damage to our wall.