i would go and buy a clay bar kit and a tub of P21S for the body and a tub of poorboys world wheel sealant.
plus a pack of sponge applicators and a microfibre work towel.
this will do the job really well. the colour of the car will look very rich and almost like it is wet.
just do a panel at a time with the P21S, rub it on, rub it off.
The wheel sealant is very good too. rub it on, the wait about 5mins for it to haze over (cuppa time, and admire your sparkling paint work). then just rub it off.
Have a look over at
www.detailingworld.com, they are very serious about car cleaning over there.