DaimlerChrysler released two artist's renderings of upcoming concept vehicles yesterday, one that looks ready to take on Ford's 500 horsepower mid-engine GT and the other which appears to be a potential production model. Which one looks ready for the showroom floor? Jeep is soon planning to add new models in an effort to optimize its brand equity, and the new Gladiator might make the best use of its familiar face than anything since the TJ.