Thanks DanD. Dilemma! Mine is just at about 40,000 miles for a 2010 plate so a long way to go to Tom's 75k. However, with the car going back to Lexus under warranty next week for reverse camera not engaging occasionally issues, windscreen wipers switching on randomly in sunny weather and a radio which likes to switch itself on and off repeatedly I rather feel there may be trouble ahead........! So perhaps the peace of mind a £1000 warranty will bring may be worthwhile. Thanks for your sage advice.