More than likely the 2007 has some lifetime goodies attached and would be my choice my wife and I have both as secondary cars (or toys) hers 2005 Ltd roadster purchased July 2006 with 9000 mi now has 46,000, mine or rather ours 2005 SRT roadster purchased Sept 2006 with 5200 mi now has just over 10,000 however we don't have the driving skills or great roadways to get the full benifits of the SRT- do you? be honest with yourself if so go for it but know in advance you will most definitely pay more for the SRT down the road you really can't go wrong either way good luck and keep the faith