Re: SRT Cover
I've had covers from Cover craft, sold through Car Cover World, and they are really good quality. I had some in "Noah" cloth, which held a good 4 years, and another one in "Evolution" cloth, which is a bit sturdier.
This has been to cover a 4x4 ex-Swiss Army truck, or my Jeep SRT8 but as mentionned by boss.man, only on a clean car and for extended periods, except a few times when we had big storms coming and I was afraid of hail... They have both been parked outside so far, but I have contracted a guy to build a shelter before the end of this year.
The Jeep cover was designed for the specific make and model, and was quite snug. The fabric I've had provides protection against elements and some limited padding, too.
'14 Grand Cherokee SRT - Granite gray
'07 Grand Cherokee SRT8 (sold)
'72 Steyr-Puch Pinzgauer 710M