I have no idea what to do with my Dad's cherished Lexus LS400 ,with 30,000 on the clock which he can no longer drive .I may have to sell it , sadly, but have no idea what it's worth . It is immaculate and flew through an MOT recently. Somebody offered me £1000, instinctively this seemed very little. I do not want to get the most possible , just a reasonable price for this lovely car which drives beautifully. Before I advertise it can anybody give me a clue what it is reasonably worth please ?