If you're in the UK, just visit a Lexus dealer next weekend (September 6 and 7) and ask for a test drive. Lexus' dealers will be glad to show you the GS 450h, the LS 600h and, of course, the RX 400h. After the ride you can put your name into the running for a prize drawing for a gratis "365-day test drive" in a (terms and conditions apply). What does that mean in simple English? You can win a RX 400h free for one year. I doubt you'll be to put some police decals on it, but that would add some fun.
[Source: Lexus UK]