I know where you are coming from,i payed 12k for a 2yr old one a while back with 28k on the clock..it was never hammered and serviced every 6k miles..when it hit 90k on the clock the engine went bang,nissan where total wankers and because i did not keep my service history up with the rip of pricks they said it was my fault, , after endless emails i got no further foward and had to bite the bullet and sell it for £2500, ,the lads who bought it said they where making a living out of repairing them as they is that many going bang,my only advice to anyone who owns one IS get the bottom end beef