A one-off 1983 Porsche 935 Street will be up for grabs tomorrow at Bonhams, Spa Classic Sale where it's expected to fetch anywhere between 300,000 and 400,000 EUR.

A one-off 1983 Porsche 935 Street will be up for grabs tomorrow at Bonhams, Spa Classic Sale where it's expected to fetch anywhere between 300,000 and 400,000 EUR.

One of the first projects Porsche Exclusive embarked on was a conversion of the 930 Turbo commissioned by a Saudi businessman by the name of Mansour Ojjeh who is part-owner and CEO of TAG, known for the TAG Heuer watchmaker brand. TAG also has a 21 percent stake in the McLaren Group which includes the company in charge of developing road-going McLaren cars but also the F1 team.

Porsche Exclusive started out with a 930 body shell and installed a turbocharged 3.3-liter engine sourced from the 934 but further modified to develop 375 bhp (280 kW). The one-off vehicle also received 935 race car-derived brakes, suspension and the wide arches. It wears a bespoke Brilliant Red paint scheme while on the inside there's a combination of cream leather upholstery with wood veneer. No less than 550 modifications were necessary, including a Clarion audio system and 15-inch BBS wheels.

Porsche did not disclose details about the original price tag but it is believed Mansour Ojjeh paid the equivalent of three brand new 911 Turbos. The car is currently in mint condition and throughout the years was driven for only 12,000 miles (19,312 km) on short journeys on the French Riviera.

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