Layout
FR layout 

Engine
5.7 L (350 cu in) LT1 V8 

Transmission
4-speed 4L60-E automatic 

Dimensions
Wheelbase
115.9 in (2,944 mm) 

Length
214.1 in (5,438 mm) 

Width
77 in (1,956 mm) 

Height
54.7 in (1,389 mm) 

Curb weight
4,036 lb (1,831 kg) 

Performance

260hp 350 (base version)
0–60 mph (0–97 km/h): 7.0 seconds
1⁄4 mi (400 m): 15.3 seconds at 91.1 mph (146.6 km/h)
Top speed: 142 mph (229 km/h)

404hp 383 (Callaway Supernatural SS)

0–60 mph (0–97 km/h): 5.9 seconds
1⁄4 mi (400 m): 14.0 seconds at 100.3 mph (161.4 km/h)

Chevrolet Impala on Wikipedia

Chevrolet Impala tech specs on https://www.automobile-catalog.com/