Purchased the GS400 from an older gentlemen in 2005 with 50K miles. The car now has over 100K miles and have not had one mechanical nor electrical issue with it. Besides the regular maintenance, i.e. new brakes, tires and oil changes - the car is as powerful as the day that I purchased it. For a car that is 10 years old the interior leather is in exceptional condition (monthly leather cleaning does help) that's more than I can say from my wife's 2006 Volvo S80 cracking leather. Overall gas mileage is unbelievable for a 300hp car, typical hwy is 28+ (75+ mph) city is around 20 mpg. This is my first Lexus and will not be my last.
The most reliable car on the road hands down. I would not expect anything less than from Toyota.