Ultima GTR

vs

Porsche 911 GT1

UK vs Germany — 1999 vs 1998

Ultima GTR (1999)
Porsche 911 GT1 (1998)
Specifications
GTR 720911 GT1 Strassenversion
Horsepower720 hp544 hp
Torque649 lb-ft443 lb-ft
Engine Size6,162 cc3,164 cc
0-60 mph2.6 sec3.6 sec
Top Speed231 mph193 mph
¼ Mile9.9 sec11.4 sec
Weight2,183 lbs2,535 lbs
Wheelbase2,680 mm2,700 mm
Length4,216 mm4,890 mm
Units Produced—25
Original MSRP$120,000$911,000
Value (Excellent)$200,000$15,000,000
Collectibility7/1010/10
Rarity8/1010/10
The Verdict

The 1999 Ultima GTR 720 holds an edge across most measurable criteria, offering more power, quicker acceleration, higher top speed. That said, the 1998 Porsche 911 GT1 Strassenversion brings stronger collectibility and remains a compelling choice for enthusiasts who value Porsche heritage. The right pick depends on whether you prioritize specifications or the intangible qualities that make a car truly special.

Overview

Putting the 1999 Ultima GTR 720 against the 1998 Porsche 911 GT1 Strassenversion is a comparison that enthusiasts have debated for decades. Each car reflects distinct design philosophies shaped by different automotive cultures — UK versus Germany. The 1999 Ultima GTR 720 holds a clear advantage in raw power with 720 hp compared to 544 hp, a 176-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Ultima GTR uses a V8 OHV (Chevrolet LS) displacing 6,162 cc, while the Porsche 911 GT1 relies on a Flat-6 DOHC Twin-Turbocharged 24V with 3,164 cc. In the sprint to 60 mph, the 1999 Ultima GTR 720 edges ahead at 2.6 seconds versus 3.6 seconds. The Ultima GTR carries a weight advantage, tipping the scales 352 lbs lighter. On the collector market, the 1998 Porsche 911 GT1 Strassenversion commands a significant premium over the 1999 Ultima GTR 720, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1998 Porsche 911 GT1 Strassenversion rates higher among enthusiasts and auction houses.