http://howmanyleft.co.uk/?q=VW+Lupo This gives the numbers by model by year (so you can tell how many got written off each year). DVLA data. (Mentioned on Top Gear last night)
Bought my Sport in May 01 (2000W) with less than 10k on the clock. Its got 113k now and still going strong. Had the pedal box done at 45k under warranty. No other dramas.