BaT Auction: 1993 Mercedes-Benz SL600 RENNTech SL74

This 1993 Mercedes-Benz 600SL has been modified with the SL74 package from RENNTech, which included increasing displacement of the quad-cam V12 to 7.4 liters, along with modifications to the brakes and suspension. The car is finished in black with a matching removable panoramic hardtop over black leather, and additional equipment includes a limited-slip differential, a vented hood, automatic climate control, power-adjustable seats, power windows, fog lamps, 18” OZ wheels, and more. The car was featured in a 1997 Motor Trend article and spent most of its life in California before being brought in 2011 to New York, where it was reportedly stored for a number of years prior to its acquisition by the seller in 2019. Subsequent work reportedly included the application of a ceramic coating, rebuilds of the E-GAS module and individual throttle bodies, and refinishing the wheels and brake calipers. This R129 shows just over 52k miles, and is being offered with a tool kit, owner’s manuals, factory literature, a clean Carfax report, and a clean New York title in the seller’s name.

1993 Mercedes-Benz SL600 RENNTech SL74

The exterior is finished in black and features a matching soft top as well as a body-colored hardtop, V12 and RENNTech badging, a ventilated hood, a dual-outlet exhaust, and fog lamps. The seller reports that a ceramic coating has been applied to the paintwork.

1993 Mercedes-Benz SL600 RENNTech SL74

The 18” multi-piece OZ Racing wheels feature black centers with polished lips, and are wrapped in Pirelli P Zero tires sized 245/40 up front and 285/35 out back. Stopping power is provided by 14” slotted discs with black-painted RENNTech-branded Alcon calipers. The SL74 package included springs that offered 1” of lowering, along with uprated sway bars. The seller reports that the wheels have been refurbished, and a full-size spare is found in the trunk.

1993 Mercedes-Benz SL600 RENNTech SL74

The cabin features power-adjustable seats trimmed in black leather along with a matching dashboard, door panels, and Mercedes Benz-branded floor mats. Woodgrain trim is found throughout the cabin, and amenities include automatic climate control, an integrated phone, and power windows. The seller reports that the radio remains locked until the car has been driven for a period of time.

1993 Mercedes-Benz SL600 RENNTech SL74

A leather-wrapped steering wheel features woodgrain accents and frames VDO instrumentation including a 160-mph speedometer, a 7k-rpm tachometer, an analog clock, and auxiliary gauges for fuel level, coolant temperature, oil pressure, and instant fuel economy. The six-digit mechanical odometer shows just over 52k miles, approximately 1k of which have been added by the seller over the last year.

1993 Mercedes-Benz SL600 RENNTech SL74

RENNtech increased the displacement of the M120 V12 to 7.4 liters, and additional modifications performed by the Florida-based tuner included the installation of titanium connecting rods, uprated exhaust and intake valves, a transmission cooler, a Moldex crankshaft, and ported and polished cylinder heads. The seller reports that work performed in the summer of 2020 consisted of a fluid change, rebuilds of the E-GAS unit and throttle bodies, and replacement batteries.

1993 Mercedes-Benz SL600 RENNTech SL74

Power is sent to the rear wheels through a four-speed automatic transmission and limited-slip differential. A stainless steel exhaust is fitted, and additional underbody images are provided in the gallery below.

1993 Mercedes-Benz SL600 RENNTech SL74

The list of RENNTech-installed upgrades is provided above.

The Carfax reports shows no accidents or other damage and displays history in California and New York through the most recent entry in January 2020. Videos of the power top in operation can be seen below and here.

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