Hello Duncan, thanks for your reply, my car has done 68,000 miles, inverter is covered for 5 yrs or 70,000 miles (whatever comes first). My car just 'died' which could have been catastrophic, luckily I was only travelling at 30mph but that is not the point, I could have been on the motorway at 70, it was scary enough at 30 never mind 70. The car braked and dipped so much that the bottom of the bumper scrapped the ground, can only hope lexus take this into account...