What's the best way to spend $100/€90/£70 on your car?

Buy a car

Fixing engine oil leaks, damn peugeots

Some laps on the Nürburgring and some Fuel!

Buy it a lap dance and a pint or 2….. Of premium.

Some nicer brakes

Nice spoiler

A mini tuneup. I could do spark plugs, an oil change, and wash/oil my filter for around $100.

Petrol?

Tints !!!!!

Right now? A distributor cap, rotor, and wires.
A battery with enough CCA wouldn’t hurt either!