Farecla G3 is the cats whiskerz when it comes to detailing. However, it can only be used with a machine polisher for the best possible results.
However, best thing to do, is Clay the car, then use several coats of AutoGlym Super Resin Polish with loads of elbow grease but thats if you can't afford the machine polisher or cant borrow one.
THEN, apply a glaze & wax after.