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I tend to agree with Aerohead and that was my initial thoughts as well as I reviewed the project. However I believe you can improve much upon the original coefficient of drag if you are willing to change the MG look and styling. This will take some serious composite work but can and would be worth it in the end if your goal is fuel economy. Clean up the wheel wells, front bonnet, under tray, and rear end and you will be on your way. You need to incorporate some sort of fast back design that tapers back smoothly into a boat tail for best aero efficiency. Reinforced composite would be the way to go here for sure in my opinion.
Altering the body design is more complicated with the MG cars vs the triumph Spitfire/GT6 in my hybrid diesel electric project as you can not remove the steel body shell as it is a structural component and integrated component of the chassis. In my kit car design I have the ability to completely remove the old heavy rusty steel Spit/GT6 body shell with only 10 bolts and then with those same 10 bolts fit a modern light weight highly aerodynamic body shell that will give me an incredible coefficient of drag onto the light weight backbone chassis.
If you had this same ability with the MG you would be golden but then well it would really not be an MG anymore it would be a kitcar! By going with a mild hybrid design and minor aero tweaks you still will be able to improve upon fuel economy for sure over the MG and most likely the Geo and come out on top.
Good luck with the project I can't wait to see the final outcome.
GH
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