Japan vs Germany — 1989 vs 1988
| Legacy B4 RSK Twin Turbo | M5 E34 | |
|---|---|---|
| Horsepower | 280 hp | 315 hp |
| Torque | 253 lb-ft | 266 lb-ft |
| Engine Size | 1,994 cc | 3,535 cc |
| 0-60 mph | 5.6 sec | 5.9 sec |
| Top Speed | 149 mph | 155 mph |
| ¼ Mile | 14.2 sec | 14.0 sec |
| Weight | 3,021 lbs | 3,638 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 | $80,000 |
| Collectibility | 6/10 | 8/10 |
| Rarity | 6/10 | 6/10 |
Two outstanding machines, each with compelling strengths. The 1989 Subaru Legacy B4 RSK Twin Turbo excels in quicker acceleration, lighter weight, better value, while the 1988 BMW M5 E34 stands out for more power, higher top speed, greater rarity. The best advice? Drive both if you can, then follow your instincts.
Putting the 1989 Subaru Legacy B4 RSK Twin Turbo against the 1988 BMW M5 E34 is a comparison that enthusiasts have debated for decades. Each car reflects distinct design philosophies shaped by different automotive cultures — Japan versus Germany. The 1988 BMW M5 E34 holds a clear advantage in raw power with 315 hp compared to 280 hp, a 35-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 3,535 cc. In the sprint to 60 mph, the 1989 Subaru Legacy B4 RSK Twin Turbo edges ahead at 5.6 seconds versus 5.9 seconds. The Subaru Legacy carries a weight advantage, tipping the scales 617 lbs lighter. On the collector market, the 1988 BMW M5 E34 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 rates higher among enthusiasts and auction houses.