OK Tell me what it is worth

[Mike80911]

A friend of my son wants to sell me his 911 It is a 2007 Carrera S convertible blue with tan 6 speed 31K mile one owner car. The car is in perfect condition he is a fanatic and really took excellent care of the car. I think the price is very fair but I am not really well informed on the newer 911s. So looking for opinions on value and any possible things to expect to go wrong in the future
Thanks

[brianvb]

45k$