Risky Business: Our $4,000 1985 Porsche 928S Project Car Blog

Just like boats, the two happiest days for the owner of a classic car tend to be the day they buy it, and the day they sell it. After buying the car for $4,000, Rudy spent approximately an additional ten thousand dollars bring the car back to life.  Nearly four years later, a need for cash combined with his waning interest in the car for Rudy to sell Project Risky Business for $10,000 cash.  So while Rudy took a loss on the sale of the car, it did help him grow his YouTube Channel.

First launched for the 1978 model year, the 1985 Porsche 928S represented a pivotal year in the model’s evolution, introducing a significantly upgraded powertrain for the U.S. market. This front-engine grand tourer combined German engineering excellence with enhanced performance specifications that elevated it above previous 928 variants. All U.S. bound 1985 Porsche 928S models featured an all-new 32-valve, 5.0-liter V8 engine—a major advancement from the previous 16-valve design. This DOHC power plant produced 288 horsepower and 317 lb-ft of torque in U.S. specification. Available with either a 5-speed manual transmission or 4-speed automatic, the enhanced engine delivered improved throttle response, smoother power delivery, and a 0-60 mph time of approximately 6.0 seconds with a top speed approaching 155 mph.  The 928S showcased Porsche’s distinctive wedge-shaped styling with pop-up headlights, integrated bumpers, and a practical rear hatch. The luxurious interior featured leather upholstery, power-adjustable seats, air conditioning, and premium audio—amenities that positioned it as a true luxury sports car.

American-spec 1985 928S models incorporated federal safety and emissions equipment while maintaining impressive performance. The new 32-valve engine represented Porsche’s commitment to delivering advanced technology to U.S. buyers, making this year particularly significant in 928 history.  The 1985 928S has become increasingly collectible, with the 32-valve engine making it especially desirable among enthusiasts. Well-maintained examples with complete service records command strong prices in today’s classic car market. Ownership requires attention to timing belt intervals, electrical systems, and valve adjustments specific to the 32-valve configuration. Proper maintenance ensures the sophisticated V8 delivers reliable performance and exemplifies Porsche’s grand touring philosophy. Rudy’s extensive one-hundred video playlist above covers nearly all of the maintenance and repair items a typical Porsche 928 owner will encounter.