Chevrolet 9C1
Specific modifications and upgrades in the 9C1 package vary by vehicle platform, though they generally center around increased durability and performance.
Both groups of options are found on the production code sticker (which on most modern GM vehicles is located in the glove box).
uses a thicker frame than the civilian car; GM replacement frame part numbers for the civilian auto and the Caprice 9C1 are the same); oversized front and rear sway bars; full-size spare tire (in the case of the fourth generation Caprice 9C1); high-output alternator; lifetime-rated green silicone coolant hoses; four-wheel disc brakes; HD steel wheels and speed-rated tires; quick-ratio power steering and transmission and power steering oil coolers; certified digital speedometer; stiffer body mounts and more of them; true dual exhaust; protective anti-stab steel plates in the front seat backs; performance 3.08 final drive ratio (3.23 w/std.
The Nova 9C1 was offered to police agencies between 1975 and 1979, originating as a prototype for the Los Angeles County Sheriff's Department in 1974.
[2][clarification needed] Starting in 1986 the Caprice would replace the Impala for the retail, taxi, and police markets based on the third generation model which was launched in 1977.
When the fourth generation 1991 model came, the former V6 was reintroduced for the 1992-93 9C6 taxi packages only and two new choices of V8 were offered for civilian, taxi, and police markets (the 5.0 V8 carried from the former generation and 5.7 V8) and featured a digital instrument cluster unlike its civilian version's analog interface, which would remain until 1993 when the LTZ version was introduced.
When the 1993-96 model cars lost its rear fender skirts design, this increased the 9C1's sales and appeal to law agencies, as this feature wasn't popular on the 4th generation Chevrolet Caprice for the 1991-92 model years, 5.7-liter Police 153 kW / 205 hp / 208 PS ( SAE net ), torque: 407 Nm / 300 lb-f. From 1994 to 1996, the detuned 260 hp (190 kW) LT1 350 c.i.
With General Motors ending production of the fourth generation model Caprice 9C1 in 1996, many police departments across the United States and Canada kept them in service far longer than most other police vehicles from that time period, reasons being for lack of finding a good enough equivalent for replacement with decent fuel mileage for its large size, high horsepower, affordable sales pricing, and reliability.
This same police package was used in the VT Commodore range at the time which was also sold in the Middle Eastern market as the Lumina.
The new 9th generation Impala 9C1 featured dual power seats, automatic headlights, cruise control, keyless entry, tire pressure monitor, digital speedometer readout, reinforced front seat frames with a center-mounted crush box, and side curtain airbags (which could also be deleted as an option).
Engine output was once again reduced in 2009 to 224 hp and 235 lb-ft of torque, and 9C1's now featured standard dual zone automatic climate control; which would be deleted after 2010.
The 9C1 package made its return, denoting patrol-ready versions, deleting the standard center console (for police computers), handbrake (for a footbrake), and adding vinyl flooring.
Following the introduction of the WN Caprice for 2014, all PPVs adopted the 9C1 package, with the update including a column-mounted transmission shifter.
Coinciding with the closure of Australian manufacturing operations by General Motors after the 2017 model year, the Holden/Chevrolet Caprice ended production without a successor.
While not directly offered to sale outside of law enforcement, some initial examples of the Caprice PPV were purchased from General Motors as used cars by virtue of factory demonstrators being cycled out by the company, surplus unsold dealer inventory, and special one-time purchases (usually by fleet upfitters for equipment demonstration use).
Features for the Tahoe 9C1 include rocker covers borrowed from the GM LT4 engine, PPV-specific engine and transmission coolers, Firestone Firehawk Pursuit tires on 20-inch steel wheels, Brembo brakes, a lowered fortified suspension, standard rear-wheel drive with optional four-wheel drive, a higher-output alternator, and a limited slip clutch in the transfer case.
[10] It is the first police-certified vehicle produced by Chevrolet, and features skid plates, Firestone Firehawk Pursuit tires on 20-inch steel wheels like found on both the Tahoe 9C1 PPV & Silverado 9C1 PPV, Protected Idle features for long-term idling, vinyl floor coverings, and equipment support.
