How do you get new spark plugs and ignition coils?

[Spyro]

Just finished tutorial and the car I got for the first job doesn't start and both those parts are at like 8% so I assume it needs new ones?

[Mardoin69]

computer... click on it and explore...

Edit: adding cuz didn't have time last time...

There's several shops / catalogs to shop from... rims, tires, gearboxes, body parts, mod cars body shop, plates, etc. etc. and the one you use most... regular parts... the 'engine' section will have ignition parts.

When in doubt, click on everything. Clicking things will discover new things. Both right click and left clicks.