USA vs USA — 1927 vs 1980
| LaSalle Series 303 | Seville STS Bustleback | |
|---|---|---|
| Horsepower | 75 hp | 135 hp |
| Torque | — | 205 lb-ft |
| Engine Size | 5,036 cc | 4,087 cc |
| 0-60 mph | — | 13.5 sec |
| Top Speed | 75 mph | 107 mph |
| ¼ Mile | — | 19.5 sec |
| Weight | 4,200 lbs | 3,900 lbs |
| Wheelbase | 3,226 mm | 2,895 mm |
| Length | 4,978 mm | 5,182 mm |
| Units Produced | 16,850 | — |
| Original MSRP | $2,495 | $21,490 |
| Value (Excellent) | $300,000 | $18,000 |
| Collectibility | 9/10 | 4/10 |
| Rarity | 8/10 | 3/10 |
Numbers favor the 1980 Cadillac Seville STS Bustleback with more power, higher top speed, lighter weight. The 1927 Cadillac LaSalle Series 303 offers stronger collectibility, and has its own devoted following. For those who let their heart decide, either car delivers a rewarding ownership experience.
Cadillac has long offered a diverse lineup, and comparing the 1927 Cadillac LaSalle Series 303 with the 1980 Cadillac Seville STS Bustleback highlights the breadth of the marque's engineering philosophy. The 1980 Cadillac Seville STS Bustleback holds a clear advantage in raw power with 135 hp compared to 75 hp, a 60-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Cadillac LaSalle uses a V8 OHV displacing 5,036 cc, while the Cadillac Seville relies on a V8 OHV (Cadillac L62 HT4100) with 4,087 cc. The 1980 Cadillac Seville STS Bustleback claims a higher top speed at 107 mph compared to 75 mph. The Cadillac Seville carries a weight advantage, tipping the scales 300 lbs lighter. On the collector market, the 1927 Cadillac LaSalle Series 303 commands a significant premium over the 1980 Cadillac Seville STS Bustleback, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1927 Cadillac LaSalle Series 303 rates higher among enthusiasts and auction houses.