My first Tigra was a 1996 (N) and my second was bought brand new in 2000 (W). Both suffered with sticking valves and the W reg even needed its cambelt and rollers changing at 17000 miles! I tried to get Vauxhall to help towards the cost of repairing this but they denied it was a manufacturing problem. I've had nothing but trouble with tigras, and would only recommed a purchase if you have never ending pockets and are a mechanic by trade!!