Interest in buying RX 350, offer by dealer o.k.???

Hello Lexus-Gemeinde, am new here in the forum and would like to ask you for expert advice! After a BMW 530d Touring it should now be an SUV, since my choice has fallen on the RX 350. Unfortunately, there is no diesel engineization and the 400h is simply too expensive for me in the purchase. Is the gasoline engine still recommended? In addition, I have set a limit of max. 42,000 EUR at the price, so it is just an annual car from the dealer. Here now that me by the Lexus dealer v available offer: Lexus RX 350 EZ: 03/2006, onyxblack, “Executive-Line”, AFS- Xenon, air suspension, Navi DVD, sound system, tailgate “Easy Load”, rear camera etc… so full equipment, except metallic and el. GSD! The vehicle was in use for 15 months as a demonstrator and has run almost 20 tkm. Is in top condition, accident-free with 2 years warranty and should cost me 36,700,00 EUR, incl. VAT with cash payment. Thank you already in advance for your statements, Greets, zwozwanni