1970 Dodge Challenger on 2040-cars

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Plymouth Rapid Transit System muscle car concepts going to auction

Over the past decade, Chrysler has built a reputation for amazing custom concept cars based on production vehicles for the SEMA Show and the Easter Jeep Safari. But the company's customization tradition has much deeper roots that include this collection of muscle car concepts headed for Mecum's Indianapolis auction this May. The collection includes three Plymouths that were featured in the traveling display called the Plymouth Rapid Transit System, and a Dodge that appeared at the 1969 Chicago Auto Show. The possible crown jewel of these cars is the 1971 Plymouth Road Runner, and that's simply because the car is completely unrestored with just 1,300 miles on the odometer. Apparently the owner of the shop that built the car for Chrysler got it back after the Rapid Transit System tour ended and took care of it until he later sold it to the late Steven Juliano, whose estate is now selling this collection of cars. Like all of these cars, modifications were mainly visual, but they were extensive. A custom nose and headlight lenses were fitted that added six inches of length, according to Mecum. The car's bumpers were removed completely, as were the external door handles. Recessed hood scoops were added to the hood, and the trunk lid was lowered by four inches to create a rear wing. The taillights were given red, yellow and green lenses like traffic lights. But the best additions were molded Road Runner head marker lights. The interior is mostly unchanged, and the engine is a stock 383-cubic-inch V8 with an automatic transmission. It also has power steering and brakes and the Plymouth Road Runner horn, which makes a "Beep! Beep!" sound like the cartoon the car is named after. 1970 Plymouth Duster View 12 Photos Then there's the 1970 Plymouth Duster in the collection with arguably the best paint scheme. It's bright green with groovy "DUSTER" lettering on the hood and various contrasting panels. It's actually the second scheme the car used, as according to Mecum, the car was built for the 1970 tour and then redesigned for the 1971 tour. The paint is matched with color-coordinated wheels and blue and green floral pattern floor mats. There are unique body changes, too, such as the custom headlight housings, functional brake air ducts up front, fake extractor vents above the rear window, racing-style fuel cap and rectangular exhaust. Mechanically, it has a stock 275-horsepower 340-cubic inch V8 and four-speed manual transmission.

Dodge Demon makes so much torque, it needs stronger driveline parts

Torque is a lovely thing, a sweet and wonderful force that twists and pulls and can help propel a two-ton metal box forward at comical speeds. Torque is also fickle and will bend and break those same metal parts without a second thought, which is why the new Dodge Demon is compensating for its increased torque with some new re-engineered and reinforced parts. And there's software intended to combat wheel hop, which one of the most dramatic ways torque can break stuff. Week 8's video, "Race-hardened Parts," gives a hint towards what all these new parts can do. While we still don't know how much torque the Demon will throw out, we do know it's enough to warrant an upgraded prop shaft, half shafts, and a differential housing. The Challenger Hellcat, which is the basis for the Demon, makes 650 pound-feet of torque already. The new parts will go a long way toward making sure the work from the Demon's engine is properly translated into motion by those Nitto drag radials. The new prop shaft uses high-strength steel, heat-treated stub-shafts, and increases the tube thickness by 20 percent for a 15 percent increase in torque capacity. Additionally, Dodge says the upgraded differential housing allows for a 30 percent increase in torque capacity by using heat-treated A383 aluminum alloy and a higher strength shot-peened gear set. The 41-spline half shafts that deliver 20 percent increased torque capacity through the use of high-strength low alloy steel and 8-ball joints. In addition to the hardware, the Launch Assist software has been tuned to help alleviate wheel hop. Dodge says the Demon is the first factory production car that uses wheel speed sensors to detect hop and momentarily cut torque to compensate. This means a driver can keep their foot planted on the floor while the computer sorts out the traction. Previously, the best solution was to back off the throttle to manually cut the load. Finally, the Dodge Demon will offer a four-point harness mounting bar as an optional accessory. The part will be supplied by Speedlogix and fits in place of the deleted rear seat. Customers can install the bar without having to hack apart their cars to find a proper mounting point. Look for more teasers and info on ifyouknowyouknow.com in the lead-up to the Demon's debut at the 2017 New York Auto Show. Related Video: Image Credit: FCA Dodge Performance dodge demon dodge hellcat

Marchionne nixes talk of a reborn Dodge Viper

UPDATE: According to Automobile Magazine's Todd Lassa, FCA chief Sergio Marchionne shot down the idea of a reborn Viper, saying "it's not in the plan." Marchionne was referring to Fiat Chrysler's five-year plan, which we've been covering in bits and pieces as the news filters out. But it's not out of the realm of possibility, apparently, as Marchionne reportedly said he'd be happy to see the reptilian supercar back in production. And it's not all bad news, anyway. A reborn Alfa Romeo 8C will get a carbon-fiber chassis holding a mid-mounted twin-turbo V6. With more than 700 horsepower, including an electrically-driven front axle, the car should hit 62 mph in fewer than 3 seconds. Also, three versions of a Maserati Alfieri will be produced, including a convertible. An electrified all-wheel-drive powertrain is planned. So, performance is coming from FCA, it just may not be from Dodge. View 36 Photos First came the mourning for the Dodge Viper, which ended production last year. Then came the Viper's continued sales run as a "Zombie Car;" we just wrote about how the Viper has racked up 11 sales so far this year, two of them in April. Now Car and Driver reports that the two-seater snake will return shorty for its second encore after being discontinued in 2009. The mag isn't equivocal about it, either, writing, "trust us: A new Viper is happening." It won't, however, be the same Viper that brought ten-cylinder brass knuckles to shake down other coupes for their wallets and jewelry. CD says we should expect the same front-mid-engine layout and rear-wheel drive tucked into a new spaceframe. That engine will lose two cylinders, with Chrysler's next-gen, aluminum-block V8 Hemi slotting into the engine bay. The previous Viper's V10 had grown to 8.4 liters and 640 horsepower by the time it drove into the sunset. CD guesses the coming Viper will start with a naturally-aspirated version of the Hemi V8 working up around 550 horsepower. Healthy doses of aluminum and carbon fiber would restrain the car's weight, on top of the weight loss from swapping an iron V10 for an aluminum V8. SRT could tart up the horsepower with a few performance trims, before a supercharged V8 with 700-plus horsepower arrives at some point after launch. The mag also suspects the initial offering will be a convertible, the hardtop appearing "a few years after launch," which could coincide with the more powerful engine. A row-your-own shifter will sit between the seats.