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2003 Buick Regal - Specs

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2003 Buick Regal

2003 Buick Regal - Review
2003 Buick Regal - Photos
2003 Buick Reviews
2003 Buick Regal - Price Quote

Visit Buick for more information on the Buick Regal.

Buick Regal - Engine Specs
Buick Regal - Transmission Specs

Buick Regal - Chassis / Suspension
Buick Regal - Exterior Dimensions

Buick Regal - Interior Dimensions
Buick Regal - Capacities


Model Lineup Engines Transmission
3800 3.8L 3800 SC Series II V6 3.8L Supercharged Series II V6 4-spd auto
(Hydra-Matic 4T65-E)
Regal LS
Standard - Standard
Regal GS
- Standard Standard

Engine 3800 3.8L Series II V6 3800 SC 3.8L
Series II Supercharged V6
Application
LS GS
Type 3.8-liter V6 3.8-liter supercharged V6
Displacement (cu in / cc) 231 / 3791 231 / 3791
Bore & stroke (in / mm) 3.80 x 3.40 / 96.52 x 86.36 3.80 x 3.40 / 96.52 x 86.36
Block material cast iron cast iron
Cylinder head material cast iron cast iron
Valvetrain OHV OHV
Fuel delivery sequential port fuel injection sequential port fuel injection
Compression ratio 9.4:1 8.5:1
Horsepower (hp / kw @ rpm) 200 / 149 @ 5200 240 / 179 @ 5200
Torque (lb-ft / Nm @ rpm) 225 / 305 @ 4000 280 / 380 @ 3600
Recommended fuel unleaded regular unleaded premium
Exhaust system dual stainless steel bright dual stainless steel
Estimated fuel economy
(mpg city / hwy / combined)
19 / 29 / 24 18 / 28 / 23

Transmission 4T65-E
Type Hydra-Matic 4T65-E four-speed electronically controlled automatic with overdrive
Gear ratios:
   1st 2.92:1
   2nd 1.57:1
   3rd 1.00:1
   4th 0.71:1
  Reverse 2.39:1
Final drive ratio LS: 3.05:1
GS: 2.93:1

Suspension 2003 Buick Regal
Front MacPherson strut with 30mm hollow stabilizer bar
Rear independent strut-type coil spring with 17mm hollow stabilizer bar

Steering 2003 Buick Regal
Type power rack-and-pinion
Steering ratio 13.3:1
Steering wheel turns, lock-to-lock 2.39
Turning circle, curb to curb
(ft / m)
37.5 / 11.4

Brakes 2003 Buick Regal
Type four-wheel disc with power assist, vented front, solid rear
Rotor diameter x thickness
(in / mm)
front: 10.8 x 1.3 / 274.3 x 33
rear: 10.9 x 0.4 / 276.9 x 10.6

Wheels and Tires 2003 Buick Regal
Wheel size and type deluxe bolt-on covers 15 x 6-inch optional
LS/GS: chrome-plated aluminum 16 x 6.5-inch optional
LS: cast aluminum 16 x 6.5-inch
Tires LS: P215/70R15 steel-belted, radial-ply, all-season blackwalls
GS: P225/60R16 steel-belted, radial-ply, all-season touring blackwalls

Exterior Dimensions 2003 Buick Regal
Wheelbase (in / mm) 109 / 2769
Overall length (in / mm) 196.2 / 4983
Overall width (in / mm) 72.7 / 1847
Overall height (in / mm) 56.6 / 1438
Track (in / mm) Front: 62 / 1575
Rear: 61.3 / 1557
Curb weight (lbs / kg) LS: 3461 / 1570
GS: 3536 / 1604

Interior Dimensions Front Rear
Seating capacity
2 3
Head room (in / mm) 39.4 / 1001 37.4 / 950
Leg room (in / mm) 42.4 / 1077 36.9 / 937
Shoulder room (in / mm) 58 / 1473 57.1 / 1450
Hip room (in / mm) 54.4 / 1382 53.3 / 1359

Capacities 2003 Buick Regal
EPA passenger volume (cu ft / liters) 101.8 / 2883
EPA interior volume (cu ft / liters) 118.5 / 3356
Cargo volume (cu ft / liters) 16.7 / 473
Trailer towing maximum (lbs / kg) 1000 / 454
Fuel tank (gals / liters) 17 / 64.3
Engine oil (qts / liters) 5 / 4.73
Cooling system (qts / liters) 11.6 / 11

Used Car Price Quote on a 2003 Buick Regal.

Although New-Cars.com checks with auto manufacturers and their representatives to confirm the accuracy of the data, it makes no guarantee or warranty, either expressed or implied with respect to the data presented here. All specifications, prices and equipment are subject to change without notice.

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