The only guide that shows the IS300 is CAP.
CAP is split into 4 sections, Retail, Trade Clean, Trade Average and Trade Below Average.
This guide tends to show what cars are achieving at auction but with Lexus having such a low through put (and IS300 even lower), it is sometimes not representative.
The figures for an 03 03 IS300 Navigator with 25,000 miles are -
Retail £18695
Clean £16350
Average £15450
Below £14400
The old adage still stands, ‘it is worth what someone is willing to pay for it’.
Rich, if you would like me to make an offer for the car, please email me on ireynolds at easternholdings dot co dot uk