- 3.6L V-6 engine (LFX) with an estimated 302 horsepower (225 kW) and E85 capability
- 170-amp alternator
- Six-speed automatic transmission
- Seventeen-inch wheels
- 2.44 axle ratio
- StabiliTrak stability control includes performance mode and traction control
The Chevrolet Impala PPV (police patrol vehicle) receives a performance upgrade for 2012, with a new, more-powerful 3.6L V-6, six-speed automatic transmission and 17-inch wheels. StabiliTrak stability control is new for 2012 and includes performance mode and traction control.
The 3.6L “LFX” engine is rated at 302 horsepower (225 kW) – a 31-percent increase over the previous 3.9L V-6. Its features include direct injection, continuously variable valve timing and E85 capability. Although the new engine packs more than 70 more horsepower, its efficiency-enhancing features and its pairing with the fuel-saving six-speed automatic mean it retains good fuel economy.
For 2012, the Impala PPV is available in police patrol or undercover police packages, offering large-car utility with midsize agility, along with power, roominess and style. Police-specific equipment includes speed-rated tires; battery run-down protection; plug and play electrical wiring harnesses; and lockout protection, which prevents the power door locks from locking the driver's door when the keys are in the ignition.
Impala exterior features
Impala interior details and features
Impala Police performance
The new LFX3.6L V-6 becomes the standard engine in the 2012 Impala Police, replacing the previous 3.9L engine and delivering 31-percent more horsepower.
The 302-horsepower (225 kW) LFX is a 60-degree design, with the cylinder block and cylinder heads cast in aluminum for low weight. A forged steel crankshaft provides optimal strength in the bottom end, while the cylinder heads include four valves per cylinder, with a dual overhead camshaft design incorporating infinitely variable cam phasing.
Additionally, optimized-flow fuel injectors and the integrated exhaust manifolds/cylinder heads promote lower emissions. The LFX’s composite intake manifold also has a comparatively small radiated surface area to help it maintain excellent noise and vibration characteristics that are comparable to an aluminum manifold.
The 3.6L engine is backed by a new six-speed automatic transmission that is performance-calibrated for police duty.
Additional powertrain and vehicle system features include:
Optimal vehicle handling is assured by Impala's four-wheel independent suspension. It features reinforced front struts, a reinforced aluminum engine cradle and heavy-duty front and rear stabilizer bars. The Impala Police car is equipped with anti-lock disc brakes with police calibration and heavy-duty front brake pads.
StabiliTrak electronic stability control is new for 2012 and includes performance mode and traction control.