2014 PETTY SRT CHALLENGER # 6 of 8 built. In 2012 petty's garage started building SRT Challenger's and built 8 before discontinuing at the end of the 2014 model year. All of these cars carry a Petty Garage VIN plate and the Tachometer has Richard's autograph on it's face. They all have different modification's . I will try to list all the modification to this car but will probably miss some. PERFORMANCE started with a 475 HP 392 CI SRT engine. They added a PG carbon fiber cold air intake,a Magniflow competition 3 inch exhaust,CNC ported heads, ompetition cams hydraulic roller cam, han dynoed it at Petty's Garage at 475 HP at the rear wheels witch would make it about 530 HP at the crank. CHASSIS. PG cradle bushing up grade, G front strut tower brace, G rear shock tower brace,PG springs, G adjustable front sway bar, G rear adjustable rear sway bar, eddler's extreme adjustable shocks with 30 settings,Custom 9 inch front and 10 inch rear wheels that I was told was picked out by Richard and as far as I know this is the only SRT challenger they put them on. They have Continental 275-45-20s on the front and 295-35-20s on the rear. BODY. PG race spoiler,PG tail lamp black out,Front halo lights,Pettys Garage rear stripe,PG windshield banner,PG grill emblem, NTERIOR. PG floor mats,PG alligator seats,Hurst shifte, LED floor lighting,LED trunk lighting,PG trunk mat,Petty's Garage SRT #6 dash emblem, ichard autographed this car 4 places, nder the hood, he back of the tach,the dash pad and on the dyno sheet. I think it is some indication of what Petty Garage numbered and autographed cars are going to sell for and you have to take into account it was a charity auction, ut one of the 2015 PG mustangs sold at mecum auctions in Dallas on Sept 19th for $330,000. I know you can buy a new Helcat for about the same price but we all know what happens to the price on cars like that when the next faster car comes out, ith only 8 of these cars being built it will be interesting to see what they are worth in a few years. This will be the last time this car will be listed on Ebay, Thank's for your interest.