FROM WIKIPEDIA:
From 1990 to 1994 (model years 1991–1994), Mercedes-Benz sold a high-performance version of the W124, the Mercedes-Benz 500 E (W124.036). The 500 E was created in close cooperation with Porsche; each 500 E was hand-built by Porsche, being transported back and forth between the Mercedes plant and Porsche's Rossle-Bau plant in Zuffenhausen, Germany during assembly — taking a full 18 days to complete each model. Design began in 1989 and into 1991. Called '500 E' through model year 1993, for model year 1994 it was face-lifted along with the rest of the range and renamed to 'E 500'.
The 500 E had a naturally aspirated 5.0L V8 engine derived from the 500 SL (R129) roadster. Sports car braking performance also came from SL components: front SL 500 300 mm disks with 4-piston calipers came installed on the 1992 and early 1993 cars. The later 1993, and all 1994 cars came with the upgraded 320 mm set taken from the 600 SL. Rear brakes on all years were 278 mm brakes from the 500 SL. In the USA, the 500 E came fully equipped, with the only options available to the buyer being a dealer-installed CD changer and an integrated cellular telephone. The 500 E was only with four seats in left hand drive, with the four leather seats supplied by Recaro (the fronts heated).
Called the "Wolf in Sheep's Clothing" by the press, performance tests of the day yielded impressive results: 0–100 km/h (0–62 mph) times of 5.5 to 6.0 seconds and acceleration through the quarter-mile (0.4 km) in 14.1 seconds at 163 km/h (101 mph). The top speed was redline limited at 6,000 rpm to 260 km/h (~160 mph). It was rated at 16.8 L/100 km (14 mpg) in the city and 13.8 L/100 km (17 mpg) on the highway.
With its aggressive stance: 1.5 inches wider track, 0.9 inch lower profile, flared fenders, side skirts, front air-dam and wide tires, the 500 E is easily distinguished from its lesser brethren. Because of its look, limited numbers, hand-built construction, and unique pedigree, the 500 E is already considered a "classic", even within Mercedes-Benz.