1. Can I use diolen (got a roll spare) for car parts eg a bonnet, front wings and front bumper, using it as the sole material as in the tutorial video for making a carbon bonnet? With a 3/5mm Soric core? I have seen diolen isn't as strong as carbon so would I need more layers/a glass layer/ or is it strong enough with the core and making both parts?

I have made small objects without bagging before just by consolidating and getting rid of air bubble etc. just want to know your thoughts on a big piece without bagging?