You never mentioned it's service history, it's always worth having full Lexus history then you get the 10yr warranty on the hybrid batteries which are checked each year or it can be done at a Toyota dealer for a reasonable price. That way if a dealer has done all the servicing you know it's not been messed around with. I bought mine from Lexus and it came with a years warranty plus it's always worth a look under the bonnet to see if any nuts and bolts are rusty, the fasteners, pipe clamps etc, in this currant climate you have to make sure the car hasn't been used as a submarine or driving through a Ford regular, a seller wouldn't go to the trouble of changing any pipe clamps and a few nuts and fasteners here and there, as a further thought and I'm not being bias I would never buy a car from the coast or Scotland unless you live there(LOL) take the first two letters from the reg and see where it was registered, it will give you an idea how rusty it is underneath and if all that doesn't float your boat pardon the pun a little app on your smart phone is great called, Vehicle Smart it's free put any reg in and it will give you a lot of information, if a car is MOT'd all previous MOT's showing mileage, how much road tax etc.