Yellow Filleting Wax
Easy-Lease Chemical Release Agent
EL2 Epoxy Laminating Resin
200g 2/2 Twill 3k Carbon Fibre
300g 2/2 twill Kevlar
In essence the process is to lay on the wax in areas where you have sharp edges, holes, undercuts etc to smooth them out to get a good release. Then wetlay the carbon onto the car in the shape you want. I recommend you include some kevlar layers. Not for specific strength, the carbon if done right will be strong enough, but for crash reasons. The mount may well break and crack in an accident but its more likely to stay in one piece with some kevlar in there.
The biggest problem you are going to have is working on a car outside with epoxy resins. Much below 20C and the cure times go up rapidly. Much below 15C and you will get several days cure time if it cures at all as moisture absorption over the extended cure time can become significant and ruin the part.