I've been thinking about this for a while now, as being based in China I keep coming accross factories and products for the car accessory market that I can buy cheaply and ship to the UK.
I've already sourced factories for the list of products below, I'd be interested in hearing any other ideas for products that are maybe difficult to get hold of in the UK, expensive, or new....
1. HID kits inc. ballast only and bulbs only
2. TFT screens, DVD players, DIN mount, headrest mount, sunvisor mount etc.
3. Rear parking sensor kits, inc LCD rear view mirror screens etc.
4. Wireless tyre pressure/temp sensor kits