had a warranty on an e class mercedes from one of the so called "better" warranty companies. ECU packed up not covered - Turbo packed up covered for 50% of cost of part, could have got a refurbed one for less! - who won? warranty company.
Best value for money is the LEXUS £59 Hybrid check that warranties the hybrid system for a year. then get it checked again with a day to go for another £59 as long as LEXUS will do it.
Lexus warranty for an rx atm is on special offer as long as its less than 140k and 10 years old £995 for 24 months instead of 12 - check the small print!