Performance statistics for 1995 Porsche 928

1. Engine, displacement and peak outputs

The headline mechanical fact is the 5.397‑liter (5.4L) double‑overhead‑cam V8 used in the final‑year 928 GTS: Porsche advertised 350 PS (about 345 bhp / 257 kW) for the 5.4L engine in GTS trim, a jump from earlier 928 variants ^{[1] [5]}. Torque is commonly listed at roughly 369 ft·lb (≈ 500 Nm), with sources giving 368.8–369 ft·lb as the peak torque figure, typically available in the mid‑RPM range ^{[2] [5]}. Specialty catalogs and magazines repeat these figures consistently, but editorial notices caution that factory records and later compilations can show small discrepancies ^[6].

2. Acceleration and top speed — real‑world numbers

Mainstream spec pages report a 0–60 mph time of about 5.5 seconds for the 1995 928 GTS, making it competitive with contemporary high‑performance GTs of its era ^[3]. Published top‑speed figures clustered around 171 mph are repeated in technical overviews and vehicle databases, reinforcing the car’s grand‑tourer performance envelope rather than raw track‑car aggression ^{[4] [5]}. As with many older cars, independently verified test numbers can vary depending on gearing, transmission choice and testing conditions; readers should expect some spread around the quoted figures ^[6].

3. Transmission, drivetrain and chassis notes

The GTS was available with a five‑speed manual gearbox — the canonical sporting transmission for the model — and older references also note automatic transaxle options across the 928 line though late‑model GTS performance figures typically cite the manual ^{[4] [1]}. Porsche’s transaxle layout, which helped achieve near 50/50 front/rear weight distribution, remained a defining handling feature of the 928 through its final production years and contributed to its balanced, high‑speed stability ^[1]. The GTS also received larger brakes, wider rear fenders and revised aero that distinguished it from earlier S4/GT cars ^[7].

4. Fuel economy and practical performance tradeoffs

Published fuel‑economy figures show the GTS is a thirsty performer by modern standards: CarsDirect lists 12 city / 19 highway / 15 combined mpg, while Kelley Blue Book/Edmunds owner data and ratings indicate real‑world city figures as low as 11 mpg and highway around 17 mpg in some reporting — a reminder that quoted economy depends heavily on driving style and source ^{[2] [8]}. Those numbers underline the 928’s role as a long‑distance, powerful GT rather than a daily commuter car for most owners.

5. Market positioning, rarity and caveats on numbers

By 1995 the GTS was one of Porsche’s most expensive offerings, with loaded examples often exceeding six figures in U.S. dollar terms at the time; production of late‑model GTS examples was limited, which helps explain the wide interest in exact spec sheets among collectors ^[1]. Buyers and researchers should note that technical summaries compiled by magazines and databases sometimes differ, and Excellence Magazine explicitly warns that discrepancies and omissions exist even among factory records — cross‑referencing multiple trusted sources is advised when an exact figure matters ^[6].

6. Bottom line — what the numbers mean

Taken together, published performance statistics paint the 1995 Porsche 928 GTS as a heavyweight grand tourer with supercar‑level straight‑line credentials: about 345 bhp, ~369 ft·lb of torque, 0–60 in roughly 5.5 s, and a top speed near 171 mph, at the cost of mid‑teens mpg and a premium price/rarity premium that endures in the collector market ^{[1] [2] [3] [4]}. Where sources disagree on fine points, the safest reporting practice is to cite the common range and to flag official‑record caveats, which is precisely what contemporary spec compendia recommend ^[6].