The SRT8 and RT are two different varieties of the dodge challenger 2012 model. The first difference between them is that the SRT8 is of a higher upgrade than the latter. The SRT8 has a larger engine, and its upgraded features make it be more expensive than the other brand. The SRT8 has a 6.4L engine with a higher horsepower of about 100hp, while the RT has a 5.7L engine with a lesser horsepower.
That simply means the former is of higher speed and greater acceleration. The SRT8 also has a larger rim of 20 inches, while the RT has an 18-inch rim. The former, in addition, also has a wider rim than the latter. The SRT8 makes use of High-Intensity Discharge (HID) as its headlights, while the RT makes use of halogen as its headlights. Meanwhile, the HID is far brighter than the halogen light. In addition, the SRT8 has its seats covered with leather, while the seats of RT are covered with clothes.