Hi SL60s were produced from 1993 to 1998 - total production was 1000 cars, of which arounf 180 were RHD. The car was being produced before Merc bought AMG so it left the factory as a partly built 500 and was shipped across the road where it was breathed on. Although Ive owned one for nearly 5 years, Ive only even seen 2 others in the UK so they are a rare site - and lovely, understated car. By the way its a normally aspirated 5.98 litre pushing out an "official" 385 BHP, 4 less that the V12....but that was because AMG wasnt allowed to produce a more powerful car than Merc so "unofficially" its reconned to be about 400BHP...oh yes and its nearly 200 Lbs lighter so just a tad faster too!
the SL60 ( V 8 ) *was an official mercedes car as was the SL73 ( V 12 ) .....
Sorry to say, but the SL73 was never a official mercedes car.