I looking to buy a 1.6/1.8 K series engined car, late 90's. I've seen discussion regarding S3 metric and S3 imperial, seems the change was around 2007, so the one I get will be imperial. My question, will the nuts and bolts on the vehicle be imperial also? I'm assuming the K series engine will be metric Thanks in advance Hopefully a soon to be Caterham owner!