The best place to start is at middlehursts. The sell 9/10 of the skylines in the UK. They will tell you everything you need to know about skylines, and you'll get an excellent oppurtunity to look over one with a fine toothed-comb.
Where you actually buy one is up to you. UK cars are worth probably at least 10% more than jap imports. They are more or less the same in spec, apart from:
- uk cars have lots of oil coolers as standard.
- uk cars have different front indicators.
- virtually all uk cars have a full, english service history.
- some insurers will be happier at insuring a uk car than a grey import.
Consider private sale over dealer sale. prices as they are at the moment, a nice condition, 1998 low miler uk R33 gtr v-spec will sell for about £23,500 at a dealer, and for about £20,000 private. So that's £3,500 for a warranty. Whether thats worth it or not is up to you.
You can find the majority of skylines for sale, be they grey imports or uk cars, on autotrader, and you can search on the web.
Personally, i'd be very wary importing a car from japan. Whilst it's one thing importing new, importing used is a bit of a risk because you can't check the car out with your own eyes before you part with your cash.
However, there may be some milage in looking at companies that import themselves, such as japvillage.co.uk.
I bought my skyline 2 weeks ago. It cost £20,000. Its a UK GTR R33 V-Spec, 34,000 miles, mint condition, FSH, and a private plate. And it has a tracker fitted (saving me ~£500).
Jon