Playing up the off-road capabilities of the 2009 Ram with the TRX package, the Mopar Underground Design Team is readying an upgraded version of Dodge’s full-size pickup truck for the SEMA Show. The Ram TRXtreme gains an extra 4.5-inches of ground clearance allowing the use of 20-inch forged alloy wheels wrapped in chunky BFG 37X12.50’s.

We seriously doubt that anyone will disagree with us when we say that the most intriguing vehicle on Dodge’s SEMA show stand in Las Vegas will be the Challenger SRT10 Concept car. As you might have already guessed by now, the SRT10 has borrowed the Viper’s 8.4-liter all-aluminum V10 engine that pumps out 600 horsepower and 560 lb. ft. of torque. The ‘halo’ concept car features a new coat of vibrant Tornado Red paint with a carbon-fiber deck lid and a functional shaker hood inspired from the 1970s HEMI Cuda. -

The Dodge Challenger R/T Blacktop is yet another concept vehicle being prepared by the Mopar Underground team that will sit alongside the Viper V10-powered Challenger SRT10 (see here) and the Challenger Targa at the Dodge SEMA Show booth in Las Vegas. The Blacktop is based on the new Challenger R/T equipped with a 5.7-liter HEMI V8 and six-speed manual transmission. The V8 engine has been enhanced with the addition of Mopar components, including a cat back dual-exhaust and cold air intake. -

No, Dodge has not finally made the decision to create of a drop-top version of its resurrected Challenger coupe. Then what’s this? Well, since Dodge and parent Chrysler LLC have their own problems to solve, Coach Builders Limited, Inc. a Florida-based aftermarket cabriolet converter firm decided to take advantage of the automaker’s lack of will (and money) by providing open-air enthusiast with an alternative, yet somewhat costly, solution.

Since this is the first SEMA Show after the introduction of the new Challenger in Chicago this past February, we’re expecting to see Dodge’s muscle car -and we’re not kidding- in the dozens. We’ll be informing you about as many custom Challengers as possible prior to the show’s grand opening next Tuesday. One of the latest modded Challengers that we found comes from Classic Design Concepts (CDC). The Michigan-based tuner has readied a widebody version of the muscle car that gets composite front fenders and “billboard” rear flares with a larger that life HEMI logo.

We told you that this year’s SEMA motorshow will be packed with Challengers -and apparently with Camaros also, but that’s another story. Joining the two SEMA show 2009 Dodge Challenger Convertibles from Coach Builders Limited and Newport Convertible Engineering is a third topless version, from Group Five Limited. But unlike the two other proposals, Group Five’s Challenger concept is a roadster or better yet, a speedster. And as such, it features a chopped windscreen and seats only for two with the rear passenger area being hidden by a tonneau cover.

Mopar Underground’s design team deserves plenty of kudos for creating one of the nicest modded Challengers we’ve seen. The concept began life as a factory 2009 Dodge Challenger R/T equipped with a 5.7-liter HEMI V8 and 6-speed manual transmission. The crew at Mopar Underground gave the Challenger R/T a black-on-black racing stripe paint scheme and added custom-made spoilers along with altering the front clip to create added “brow” over the grill.

While the Challenger is sure to get most of the attention at SEMA, nevertheless Dodge also brought along four tricked-out Ram pickup trucks. Starting off with the Ram R/T pictured above, the concept is based on the 2009 Ram Sport with a 380HP 5.7-liter HEMI V8 and it’s supposedly inspired from the re-born Challenger. Mopar Underground painted the R/T truck in a classic B5 Blue and added a bodykit which consists of sill and box pieces, finished up with a chin spoiler, dual-snorkel aluminum hood and carbon-fiber accent stripes.