ORIGINAL: epegasus
You make some really good point but that Charger concept is definitely not similar to the Challenger accept they both would be in the sport coupe category. IMHO, being a little crowded in that category is a GREAT thing. Sort of like BMW having a smallish sport coupe in the 3 series and a big body in the 5 series. It would be awesome for them to develop a smaller platform (or at least a lighter weight one) for the Challenger and leave the present sized platform for the Charger concept.
No it won't be a great thing. The problem is the coupe market isn't as big as it used to be. When you make too many redundant models, you flood the market and neither one becomes profitable. Why do you think that Jeep has decided to stop production of the Commander? After a while it is likely that something similar will happen to the Compass. GM has learned this the hard way and has had to adjust accordingly by consolidating the Grand Prix, GTO, and Bonneville by the G8, consolidating the LeSabre and Park Avenue by the Lucerne, consolidating the DTS and STS by their replacement, etc. and those models were at least on different platforms. The powertrain would be the same, the weight would be similar, the styling although it isn't the same is still too similar. Take a look at the upper grille, it and the Challenger look similar. The rear also looks similar. The interior would more than likely look similar. It wouldn't work. Moving the Challenger in the middle of production would be a costly and potentially dangerous move, and if they did, you could likely kiss the 6.1L or rumored 6.4L goodbye, and possibly more than just that as they would give that to the larger Charger if they did what you proposed. This isn't the 60s & earily 70s, they have to compete in the market that exists, not the market we wish existed.
Besides this, Chrysler needs to focus what money they have on hand on the models they are lacking and they already have the muscle car gap filled. They need a Neon replacement, they need a competitive mid-sized offering, they need to have a full-sized sedan update or replacement first before they make another coupe.