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2012 Civic Si Coupe Specifications
Body/Suspension/Chassis
  Si
Unit-Body Construction Standard
MacPherson Strut Front Suspension Standard
Multi-Link Rear Suspension Standard
Stabilizer Bar (mm, front/rear) 18.0 / 15.0
Motion-Adaptive Electric Power-Assisted Rack-and-Pinion Steering (EPS) Standard
Steering Wheel Turns, Lock-to-Lock 3.11
Steering Ratio 16.08
Turning Diameter, Curb-to-Curb (ft) 35.4
Power-Assisted Ventilated Front Disc/Solid Rear Disc Brakes 11.8 / 10.2
Wheels 17" Alloys
All-Season Tires P215 / 45 R17 87V
Michelin® Pilot® Exalto® PE2™ Summer Tires (available)[1]  215 / 45 ZR17 91W
Compact Spare Tire T135 / 80 R16 101M
Exterior Measurements
  Si
Wheelbase (in) 103.1
Length (in) 176.1
Height (in) 55.0
Width (in) 69.0
Track (in, front/rear) 59.0 / 59.9
Curb Weight (lbs) 2877 / 2897 (with Navigation)
Weight Distribution (%, front/rear) 61 / 39
Interior Measurements
  Si
Headroom (in, front/rear) 37.7 / 34.3
Legroom (in, front/rear) 42.2 / 30.8
Shoulder Room (in, front/rear) 55.1 / 52.2
Hiproom (in, front/rear) 53.2 / 49.0
Cargo Volume (cu ft) 11.7
Passenger Volume (cu ft) 82.6
Seating Capacity 5
 
[1]  Michelin®, Pilot® and Exalto® are registered trademarks of Michelin North America, Inc.