USA vs USA — 1963 vs 1988
| Riviera 1st Generation | Reatta Coupe | |
|---|---|---|
| Horsepower | 325 hp | 165 hp |
| Torque | 425 lb-ft | 210 lb-ft |
| Engine Size | 6,571 cc | 3,791 cc |
| 0-60 mph | 8.0 sec | 9.5 sec |
| Top Speed | 120 mph | 123 mph |
| ¼ Mile | 15.5 sec | 17.2 sec |
| Weight | — | 3,400 lbs |
| Wheelbase | 3,023 mm | 2,526 mm |
| Length | 5,334 mm | 4,684 mm |
| Units Produced | 40,000 | 21,751 |
| Original MSRP | — | $26,700 |
| Value (Excellent) | $65,000 | $25,000 |
| Collectibility | 5/10 | 5/10 |
| Rarity | 5/10 | 6/10 |
It's a closely fought contest. The 1963 Buick Riviera 1st Generation brings more power, quicker acceleration to the table, and the 1988 Buick Reatta Coupe answers with higher top speed, better value. Both are excellent machines that reward their owners in different ways — there's no wrong answer here.
Buick has long offered a diverse lineup, and comparing the 1963 Buick Riviera 1st Generation with the 1988 Buick Reatta Coupe highlights the breadth of the marque's engineering philosophy. The 1963 Buick Riviera 1st Generation holds a clear advantage in raw power with 325 hp compared to 165 hp, a 160-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Buick Riviera uses a V8 OHV displacing 6,571 cc, while the Buick Reatta relies on a V6 OHV with 3,791 cc. In the sprint to 60 mph, the 1963 Buick Riviera 1st Generation edges ahead at 8.0 seconds versus 9.5 seconds. On the collector market, the 1963 Buick Riviera 1st Generation commands a significant premium over the 1988 Buick Reatta Coupe, reflecting differences in prestige and rarity.