Founded in 1967 by a pair of former Mercedes-Benz engineers, AMG was primarily engaged in offering a range of performance upgrades and cosmetic packages for Mercedes-Benz automobiles.

From 1986 until their 1993 merger, AMG also operated as the de facto works team and engine supplier representing Mercedes-Benz in Group A and Group N competitions.

By 1989, the jewel of AMG’s catalogue was the 6.0-liter, DOHC V-8 engine conversion for the Mercedes-Benz S-Class.

At a cost of $43,500, this performance package consisted of taking a stock 5.5-liter M117 V-8 engine and boring it out to 6.0 liters before equipping it with a set of proprietary, 32-valve cylinder heads which AMG had initially introduced in late 1985.

Additional modifications like uprated brakes, aerodynamics, chassis upgrades, and limitless cosmetic accoutrements could easily knock the final price of fully kitted 560 SEL AMG 6.0 above $190,000.

This 1991 560 SEL AMG 6.0 is a Japanese-market car commissioned and assembled by ...