PR4

"Okay, before you click off, we know what you're thinking. The power, the handling, the aerodynamics, they're all very well but what can you possibly do with as formidable an open wheel race car as the Progen PR4 on the city streets? You're the one reckless enough to find out. You tell us."

- Legendary Motorsport description.

The Progen PR4 is an featured in Grand Theft Auto Online as part of the continuation of the The Diamond Casino Heist update, released on February 20, 2020, during the Blista Kanjo Week event.

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The PR4 is a car modelled after the 1989, evidenced by the V10 powerplant and solo wing/spoiler, although the sharper nose, flatter air intake and narrower rear endplate leans toward the 1991. Some modifications available at Los Santos Customs are apparently borrowed from the MP4/5B. The engine is supplied by Dinka Racing Division, reflecting the McLaren's power.

The PR4 features a narrow, low-profile design, having the distinctive long nose with the large dual wings on front, an open driver compartment, small side intakes and the large rear wing with the single tail light. The entire underside of the vehicle is carbon plated. Also, similar to vehicles like the Drift Tampa or the Hotring Sabre, the PR4 features the use of racing slicks for the wheels, along with its own custom "Race" wheels. The vehicle is painted with the primary colour, while the surfaces of the wings are painted in a secondary colour.

Its interior uses the race-type digital display screen used on various vehicles, along with numerous buttons found around the panel and the steering wheel.

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The PR4 is a surprisingly well rounded vehicle, having fair handling and excellent braking. At high speeds, the vehicle will get a slight understeer when attempting tight turns but this is mitigated through simple use of brakes. The downside of using this vehicle, however, is that the driver will be unable to use their weapons at all, risking the player getting attacked and not being able to return fire.
 * Vehicle

Unlike other vehicles, the PR4 damage absorption will not result in deformation but instead the body kit falling off, exposing the engine and base frame. This can result in more understeer as the car loses more traction because of the missing parts, especially if the spoiler is gone.

Due to the immense downforce, the PR4 can also drive on walls, even ones that are slightly curved outwards, and even ceilings if the player angles the car correctly, especially in the Los Santos Storm Drain, where there are inclines.

The PR4 is powered by a V10 engine fitted with what appears to be a large intake with double-barrel carburetors/throttle bodies. Its sound is a higher-pitched variation of the engine sound from the Tyrus. Installing the "Turbo Exhaust" modification adds a turbocharger on either side of the engine.

Both the PR4 and the R88 are known to have different downforce values in Freemode. Depending of the front and rear wing setups, one is able to provide either lower downforce to increase speed or higher downforce to provide better cornering abilities. In Open Wheel Races, however, wing setups do not have effect on the vehicle, as it resets downforce values.

In addition to its already impressive speed, the PR4 also has KERS, allowing the driver to increase their speed even further by activating the boost, in a similar manner to the Lectro and the Vindicator. The boost lasts for four seconds and it takes about six seconds to recharge to its full capacity, but it does not have to be full to activate it. In order for the boost to recharge, the vehicle needs to begin slowing down to let it charge. Stopping the vehicle, accelerating, or reversing will prevent the boost from recharging.
 * Features

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 * * There are 10 liveries available to be applied, most of which reflect those that were used by various Formula One teams from the early 1990s.
 * ** Vehicle is limited to Wheel Color, Bulletproof Tires and Tire Smoke. Custom Wheels are restricted to the options listed above.

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 * General

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 * Available for purchase from Legendary Motorsport for $3,515,000.

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 * It could be won from the Lucky Wheel in the Casino during the Blista Kanjo Week event, a week before it was made available for purchase.
 * Could be won from the Lucky Wheel for a second time during the San Andreas Prix Week event, with the "Estancia Tobacco" livery applied.

Trivia

 * The PR4 does not have a default radio station, as it will remain off until the player opens up the radio wheel.

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 * When the player drives a damaged PR4 into LS Customs, the car will automatically be repaired for free. The player will be charged a small fee to clean the vehicle if it is dirty though.
 * This was patched in later updates.

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