How old is the car, and does it have a full service history. Which will have a bearing on any warranty claim.

Check that first.

The 10 year warranty on Toyota cars if you get them serviced at a Toyota Franchise I think underlines a massive belief in the world leading quality & reliability of Toyota cars.

Ford, VAG etc

VAG denying dodgy ABS brake issues, Diesel engines, 1.5ltr petrol travails, DSG gearbox issues ...............

Ford - Dodgy 1 litre 3 cylinder engines blowing up & Powershift gearboxes failing at low mileages leaving punters with huge bills. Admittedly Ford have repented after many years and paid out to some owners for the costs of new engines & gearboxes.

Maybe I'm old fashioned. But if you need a warranty or think you do because your afraid of big bills. It's simply that your running a car you can't afford and it'll likely end badly. Buy a more mainstream example of higher quality than fragile exotica which could be a poor badly maintained example. Remember a car a few years old that cost say 60,000 when new. Might be cheap to buy now but the bills will still be based on that selling price.