The turbines drive a generator. That Jag is an electric car. So the whole thing is a Volt with Lucas electrics. Hmmmmmm, one wonders if GM have a secret Volt using this... seriously.

Emissions: Whatever the products of combustion are of gasoline , kerosene, diesel, nat gas, hydrogen , farts, biogas etc. burnt in air I guess .

I suppose the power upgrade would come from Pratt & Whitney? That would need a hood scoop for sure.
I rather like this idea.