The Caballero was more powerful (and popular) than the Special Riviera Estate.

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1957-1958 Buick Caballero/Special Riviera Estate Specifications

The 1957-1958 Buick Caballero/Special Riviera Estate didn't offer much to write home about, performance-wise, although the Century Caballero boasted an upgraded engine that could achieve 300 horsepower.

Specifications

Engines: ohv V-8, 364 cid (4.13 × 3.40); Special: 250 bhp; Century: 300 bhp

Transmission: 3-speed manual; 2-speed Dynaflow automatic

Suspension, front: upper and lower A-arms, coil springs

Suspension, rear: live axle, semi-elliptic leaf springs

Brakes: front/rear drums

Wheelbase (in.): 122.0

Weight (lbs): Caballero: 4,423; Special Riviera: 4,309

Top speed (mph): 100-110

0-60 mph (sec): 10.0-10.5

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