if compare G to a dslr of cz regret, excluding aspects like portability n cost-saving. if u shoot a lot under lowlight n demand bigsize printout thn consider tis fact: D500 iso performance at 800 is similar to iso 200 quality on G11/12, given it's sensor size is 6x bigger thn G's. in term of macro, G's result is not too shabby while save u fr buying a macro lens for SLR. Since u shoot cars (static rite?) thn shootin n AF speed of G shud b edequate.

KC:
nice Boxster, u got an auto fan here.  may i kno wat cam used for these shoots n oso d shooting parameters? to shoot whole car i would use smaller aperture fr 5.6 to 8 to increase DOF, means u can hav sharp focus fr front to rear part of d car.

KC, nice car,

mayb you should fill some flash light in the dark side...flash also can mix the light u already have, so u wont get many reflection light from top light...