Don't waste your time comparing a buick to a lexus the lexus will out shine a buick any day and throw in night too! I have a 91 lexus with 192,000 miles and not a single problem I do the maintance my self and I also had a 1999 buick la sabre and boy did it cost money to keep it up. The biggest problems with the buicks was the plastic intake manafold whic leaked and thousands of engines blew up when water leaked in the pistons the transmissions went out on schedule and they had problems with the valve trains droping bearings so lets see how much problems you will have with the lexus if you try real hard maybe something will go out but don't count on it.