Don't get starry eyes when viewing one... Keep your senses about you and take your time checking all electrical items, nothing on these cars are cheap to sort, if buying from a Lexus garage make sure/bargain with them for a extended warranty, check heated seats both front and rear work ie put them all on check they are heating up and leave them on whilst you look around rest of car then check later that seats are still heated.... My drivers one went wrong and used to heat up for 5-10 mins then stop heating up, as I had a warranty,seat leather with intrigated heat element was replaced free of charge to myself (£1350+vat) just for seat base leather n element
these are excellent cars and you will not be disappointed, as Pat said the HL versions with relaxation pack only have 2 seats in back so if you need the extra room go the 600h not 600hl... Boot space is small for a big car,