The 525hp Mercedes-Benz AMG SL73
#1

Mercedes-Benz AMG SL73: 525hp
With only 85 ever constructed this is and AMG you'll probably never see
A look back at a nice little article form Mercedes-Heritage:
If the 302 hp 2000 SL500 is not up to your power requirements, perhaps 525 hp would better suit your needs. AMG, never known to be shy regarding shoehorning massive power into various Mercedes products, figured the only way to liven up the 4500 lb 1999-2001 SL600 was to add power, and plenty of it.
While the standard specification SL600 generated a seamless 389hp from its 5.9 liter 48 valve V-12, an additional 1.4 liters of displacement was required to obtain the 34% hp increase necessary to drag this heavyweight to 60 mph in just 4.7 seconds. And the maximum torque ballooned from 420 ft/lb to 558 ft/lb! Other modifications included suitably updated brakes and suspension as well as subtle cosmetic refinements that made this European spec only hot rod quite a sleeper.
Clarkson weighs in:
Top Gear’s Jeremy Clarkson, during a road test in 2001, moaned about the car’s dated looks, generally imprecise handling, and brakes that did not inspire confidence. And this was for a car that sold for an enormous premium above the already stratospherically priced standard Euro SL600. He was, however, pleased with the massive smoky burnouts possible once the traction aids were switched off.
With only 85 constructed, chances are you’ll never see one in the flesh. But if you’re touring the Autobahn and you see one of these beasts in the rear view, you’ll likely want to move aside.
While the standard specification SL600 generated a seamless 389hp from its 5.9 liter 48 valve V-12, an additional 1.4 liters of displacement was required to obtain the 34% hp increase necessary to drag this heavyweight to 60 mph in just 4.7 seconds. And the maximum torque ballooned from 420 ft/lb to 558 ft/lb! Other modifications included suitably updated brakes and suspension as well as subtle cosmetic refinements that made this European spec only hot rod quite a sleeper.
Clarkson weighs in:
Top Gear’s Jeremy Clarkson, during a road test in 2001, moaned about the car’s dated looks, generally imprecise handling, and brakes that did not inspire confidence. And this was for a car that sold for an enormous premium above the already stratospherically priced standard Euro SL600. He was, however, pleased with the massive smoky burnouts possible once the traction aids were switched off.
With only 85 constructed, chances are you’ll never see one in the flesh. But if you’re touring the Autobahn and you see one of these beasts in the rear view, you’ll likely want to move aside.

The extremely rare SL73 AMG was sold through AMG in 1995, and at 525 bhp it offered the most powerful V12 engine ever put into an SL up to that time. After a brief gap, the SL73 was offered again from 1998 to 2001, although the engine was slightly updated to be more reliable. The same 7.3 L V12 was later used by Pagani in the Zonda. A total of 85 SL73 AMG roadsters were built. The SL73 was briefly reintroduced in September 1999 following the SL's end of life facelift and a limited number were produced up until December 2001.

#6
At that time even the Ferrari V12's arent in the 500hp range till the Maranello 575M in 2003/4.
525hp in 1995
you've got Porsche with the 928 GTS "385"hp,
Ferrari F355 388hp etc.
#10
I like the R129 more than the R230. Older cars appeal to me more than the new one's, specially the 2001-2002 SL's before the current generation.
Mine is a 1992 300SL before the facelift when it was called SL320.
Mine is a 1992 300SL before the facelift when it was called SL320.




