Yeah was on a season or two ago. Basically the premise was that uk police cars were so expensive the cops were frightened of damaging them, so the top gear team each had 1000 pounds to buy a car and convert into a police car.
James May chose a ls400
They then took them through a bunch of tests basically ending in all three cars being written off.
Of course the government introduced new immissions regs at the start of the year that have pushed prices up a bit, even on cars imported prior to January. Looking at current prices, I actually think I'd get about $1000 more this year than I would have last year if I'd decided to sell my Soarer.
Of course then I'd just have to spend $1000 more on the next car, so not like I'd be making any sort of gain.