.
Lower her (sorry, you call your car a "him"
) and the 17's will look much better.
BCS a good choice 
Ha Ha, Robin, is it a bit dodgy calling your car masculine?

I've always called them him or her depending whether they look like a boy-car or a girl-car. For example, My Mum's old Herald was a girl, but her Stag was a boy! Her XR2 was a boy, but her current Modus is deffinately female!
Thanks for the BCS nod. I'm really excited about their products, and really admire their enthusiasm. They deserve to do well, and I like to support new growing British companies when I can. And the PDT/Storm Developments Stage 1 on the old car was brilliant, so It makes sense to keep that going, as they're fairly local and a nice bunch who I trust.