Koenig is known for the widebody conversions of high-end models from the likes of Ferrari, Porsche, and Mercedes, but the German tuner also did some work on models from mainstream manufacturers. A great example is this rare Opel Kadett GSi from 1987 that’s sporting quite extensive visual modifications.
For our younger audience, the Kadett is the great grandfather of the Astra. The pictured example is based on a three-door hatchback Kadett E, and more specifically the top-of-the-range GSi variant. However, due to the redesigned body panels and the non-stock taillights, it is hard to identify it as an Opel, since only the upper part of the body remains unchanged.
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The Koenig bodykit includes an aerodynamic front bumper with a prominent chin, a completely redesigned tail with rectangle taillights, a rear wing and the signature wide front and rear fender add-ons. The latter are integrated into the bodywork with faux side vents inspired by the Ferrari Testarossa which was one of the most iconic supercars of the ’80s. Finally, a unique set of wheels are shod in ultra-wide tires that look like they came off the rear axle of a supercar.
The exterior might be getting most of the attention, but the cabin has also received a series of upgrades. Inside you’ll find a set of leather-wrapped bucket seats, a Momo steering wheel, Sparco-branded treadplates and floormats, alongside a retro-flavored digital instrument cluster.
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The Opel Kadett GSi came fitted with a naturally aspirated 2.0-liter 16-valve four-cylinder producing 156 hp (115 kW / 158 PS) and 203 Nm (150 lb-ft) of torque. We have seen some pretty wild powertrain modifications in Kadetts, but the listing doesn’t mention any so we guess the engine remains in stock form. The current owner has back issues and didn’t find it comfortable to drive, so it might feature a stiffer suspension than the factory-spec model.
The odometer reads 177,170 km (110,088 miles) but unfortunately, the Kadett doesn’t come with service records. Still, the inspection proved that it remains in very good condition, both mechanically and cosmetically, with minimal signs of wear despite its age.
The tuned hot hatch is listed for sale on Catawiki. It is located in Spain, where the original owner bought it new in 1987, with the bodykit retrofitted in 1990. According to the listing, this is one of three Koenig-bodied Kadetts in Spain, and while we don’t have data about the rest of Europe, it is certainly a very rare vehicle.
The auction closes on June 2, so there’s plenty of time to bid. If you are wondering about the cost of this rare Kadett, it is estimated to fetch between €23,100 ($24,792) and €25,500 ($27,367).
