Porsche 928 S4

The Porsche 928 S4 updated the flagship GT with a potent 316 hp 32-valve V8 and smoother, more modern styling. It represents a great value for V8 Porsche performance, but the market shows a wide price spread between projects needing work and pristine, investment-grade cars.

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Typical sold price of a Porsche 928 S4 ranges from $7,045 to $53,242, based on 809 sales tracked on Hypercars. 76 currently for sale.

Volume · 30d

$155k

Live listings

across all marketplaces

The Porsche 928 S4 debuted for the 1987 model year, representing a major evolution for the V8-powered grand tourer. It featured a new 5.0-liter, 32-valve DOHC V8 that produced 316 horsepower, a significant increase over its predecessor. The S4 also received updated styling with a smoother, more rounded nose and a new rear wing, modernizing the car's appearance and improving its aerodynamics.

Collectors appreciate the S4 for being a sweet spot in the 928 lineup. It's significantly more powerful and refined than the earlier 16-valve cars but still feels more analog than the later, heavier GTS. The combination of its advanced-for-the-era V8, autobahn-crushing stability, and unique luxury makes it a compelling classic GT. Manual transmission cars are especially rare and sought-after.

The market for the 928 S4 is mature, with a wide gap between project cars and top-tier examples. The average sale price of around $27,500 reflects the availability of good drivers, but buyers are wary of deferred maintenance. Pristine, low-mileage examples, particularly with manual gearboxes, can sell for over $100,000, indicating strong demand for the very best cars.

Buying Tips

The 5.0-liter V8 is an interference engine, so verify the timing belt and water pump have been replaced within the last 5 years or 60,000 miles. A failure is catastrophic.
Test all electronics thoroughly. The instrument cluster pod, central warning system, and climate control can all suffer from complex and expensive-to-fix issues.
On automatic models, check for smooth shifts and fluid leaks. The 4-speed automatic is robust but very expensive to rebuild, and torque tube repairs are labor-intensive.
Beware of cheap cars. A low purchase price is often a sign of deferred maintenance, and the cost of parts and specialized labor for fuel lines, suspension, and intake manifold refreshes adds up quickly.
Look for a complete service history. These are complex cars, and documentation showing consistent, expert care is the best indicator of a healthy example.

Based on 282 recent sales, prices for the 928 S4 range from $1,825 for project cars to $112,000 for exceptional examples.

809 Porsche 928 S4 vehicles have been tracked across auctions and listings on Hypercars, with 76 currently live. Sold prices range from $500 to $166,852.

Data sourced from Bring a Trailer, Cars & Bids, eBay Motors, PCarMarket, and Collecting Cars. Updated daily.

Frequently Asked Questions

How much does a Porsche 928 S4 cost?

Based on 809 sales tracked on Hypercars, Porsche 928 S4 prices typically range from $7,045 to $53,242. There are 76 currently for sale.

How many Porsche 928 S4 listings are for sale right now?

There are 76 Porsche 928 S4 listings currently live across auctions, dealers, and marketplaces tracked by Hypercars.

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Buying Tips

Frequently Asked Questions

How much does a Porsche 928 S4 cost?

How many Porsche 928 S4 listings are for sale right now?

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