Japan vs West Germany — 1989 vs 1988

| Legacy B4 RSK Twin Turbo | M5 E34 3.8 | |
|---|---|---|
| Horsepower | 280 hp | 340 hp |
| Torque | 253 lb-ft | 295 lb-ft |
| Engine Size | 1,994 cc | 3,795 cc |
| 0-60 mph | 5.6 sec | 5.4 sec |
| Top Speed | 149 mph | 174 mph |
| ¼ Mile | 14.2 sec | 13.6 sec |
| Weight | 3,021 lbs | 3,814 lbs |
| Wheelbase | 2,650 mm | 2,761 mm |
| Length | 4,605 mm | 4,720 mm |
| Units Produced | 25,000 | 12,254 |
| Original MSRP | — | $56,600 |
| Value (Excellent) | $25,000 | $120,000 |
| Collectibility | 6/10 | 8/10 |
| Rarity | 6/10 | 6/10 |
Numbers favor the 1988 BMW M5 E34 3.8 with more power, quicker acceleration, higher top speed. The 1989 Subaru Legacy B4 RSK Twin Turbo offers lighter weight, better value, and has its own devoted following. For those who let their heart decide, either car delivers a rewarding ownership experience.
The rivalry between Japan and West Germany automotive industries has produced legendary matchups, and the 1989 Subaru Legacy B4 RSK Twin Turbo versus 1988 BMW M5 E34 3.8 is among the most fascinating. These two cars represent the best of their national engineering schools. The 1988 BMW M5 E34 3.8 holds a clear advantage in raw power with 340 hp compared to 280 hp, a 60-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Subaru Legacy uses a Flat-4 Twin-Turbocharged displacing 1,994 cc, while the BMW M5 relies on a Inline-6 DOHC 24V with 3,795 cc. In the sprint to 60 mph, the 1988 BMW M5 E34 3.8 edges ahead at 5.4 seconds versus 5.6 seconds. The Subaru Legacy carries a weight advantage, tipping the scales 793 lbs lighter. On the collector market, the 1988 BMW M5 E34 3.8 commands a significant premium over the 1989 Subaru Legacy B4 RSK Twin Turbo, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1988 BMW M5 E34 3.8 rates higher among enthusiasts and auction houses.