This 1988 Porsche 911 Turbo is a factory M505 slant nose cabriolet that was ordered with front sport seats and shows 32k miles. Powered by a turbocharged 3.3-liter flat-six paired with a four-speed manual transaxle, the car received over $15k of service in 2026 that involved resealing the engine, installing a replacement clutch, converting the air conditioning to R134a, repairing the soft top assembly, and replacing the main main fuel lines. It is finished in Guards Red over black leather and features 16″ Fuchs alloy wheels, four-wheel cross-drilled and ventilated disc brakes, a black soft top, a Bluapunkt CD stereo, and air conditioning. Recently acquired by the selling dealer, this M505 930 Turbo cabriolet is offered with a tool set, service records, an owner’s manual, a clean Carfax report, and a clean Florida title.

The car is finished in Guards Red and is equipped with factory flachbau bodywork (M505), a package that featured pop-up headlights, vented front fenders, side strakes, and extended side sills. Additional equipment includes a power-operated black convertible soft top, integrated fog lights, and dual exhaust outlets. The soft top cables were replaced in May 2026.

Forged 16″ Fuchs alloy wheels are mounted with Pirelli P Zero Rosso tires. Braking is handled by four-wheel cross-drilled and ventilated discs, and Turbo models received front and rear sway bars as standard.

The power-adjustable front sport seats are upholstered in black leather with red piping, and amenities include an analog clock, a Blaupunkt CD stereo, and power windows. The air conditioning system was converted to utilize R134a refrigerant and fitted with replacement components in May 2026.

The three-spoke leather-wrapped steering wheel frames VDO instrumentation including a central tachometer with a 6,700-rpm redline as well as a 170-mph speedometer and gauges for oil pressure, oil temperature, oil level, fuel level, and boost pressure. The six-digit odometer shows 32k miles.

The turbocharged 3.3-liter flat-six was factory rated at 282 horsepower and 278 lb-ft of torque. An aftermarket intercooler is fitted. The Permatune control unit was replaced in 2008. Work in May 2026 by Trophy Performance of Las Vegas included replacing the front crankshaft seal, rear main seal, oil pressure switch, main fuel lines, camshaft oil feed lines, turbocharger gaskets, exhaust manifold gaskets, and more as detailed on the invoice shown in the gallery.

Power is sent to the rear wheels via a four-speed manual transaxle, which was overhauled in 2007. The clutch disc, pressure plate, and release bearing were also replaced in May 2026 along with the transaxle gasket, rear shift coupling, and shifter bushings.

The seller notes that the options code sticker is present under the front hood.

  • L80K – Guards Red paint
  • C03 – Version for California
  • 018 – Steering wheel with elevated hub
  • 158 – Cassette-radio Blaupunkt Monterey
  • 383 – Sports seat, left, electrical height adjustment
  • 387 – Sports seat, right, electrical height adjustment
  • 439 – Electric soft top
  • 505 – Slant nose, USA
  • 533 – Alarm system
  • 975 – Velour carpeting for trunk

The Carfax report is free of accidents or other reported damage.