Jaguar XJR-15

vs

Porsche 959

UK vs Germany — 1990 vs 1987

Jaguar XJR-15 (1990)
Porsche 959 (1987)
Specifications
XJR-15959 Komfort
Horsepower450 hp450 hp
Torque410 lb-ft369 lb-ft
Engine Size5,993 cc2,849 cc
0-60 mph3.9 sec3.6 sec
Top Speed191 mph197 mph
¼ Mile12.1 sec11.8 sec
Weight2,315 lbs3,439 lbs
Wheelbase2,590 mm2,272 mm
Length4,420 mm4,260 mm
Units Produced53292
Original MSRP$960,000$225,000
Value (Excellent)$3,000,000$3,000,000
Collectibility9/1010/10
Rarity9/109/10
The Verdict

Two outstanding machines, each with compelling strengths. The 1990 Jaguar XJR-15 excels in lighter weight, greater rarity, while the 1987 Porsche 959 Komfort stands out for quicker acceleration, higher top speed, stronger collectibility. The best advice? Drive both if you can, then follow your instincts.

Overview

Putting the 1990 Jaguar XJR-15 against the 1987 Porsche 959 Komfort is a comparison that enthusiasts have debated for decades. Each car reflects distinct design philosophies shaped by different automotive cultures — UK versus Germany. On paper, the two are remarkably close in power output, with the 1990 Jaguar XJR-15 producing 450 hp and the 1987 Porsche 959 Komfort delivering 450 hp. Under the hood, the contrast is notable: the Jaguar XJR-15 uses a V12 DOHC displacing 5,993 cc, while the Porsche 959 relies on a Flat-6 DOHC 24V Twin-Turbocharged with 2,849 cc. In the sprint to 60 mph, the 1987 Porsche 959 Komfort edges ahead at 3.6 seconds versus 3.9 seconds. The Jaguar XJR-15 carries a weight advantage, tipping the scales 1124 lbs lighter. Rarity plays a significant role here — with only 53 units built, the 1990 Jaguar XJR-15 is considerably scarcer than the Porsche 959's 292 examples. Both trade at comparable values on the collector market, making the choice between them largely one of personal preference.