I don't have my finger on the pulse regarding values of older GS300 but this looks like someone bagged a bargain on ebay
Here's the sales text
Silver Lexus GS300, 1998, in very good condition inside and out. 137,000 miles with only two owners (including current).
Well presented bodywork with very clean two tone interior (never been smoked in or pets) and all electrics in working order.
Very well looked after vehicle with the following recent work to keep it in excellent, smooth running order:
• New radiator
• New water pump
• New drive belt
• New timing belt and plugs
• New FULL exhaust system
Good history with lots of receipts (including all recent work).
Good set of tyres with plenty of tread.
Car is MOT'd until April 2018.
Really good, reliable car that has been very well cared.
Here's one of the pictures,
The price??
after 21 bids, the final price was £670
Bargain or about right?