Ariel are developing one for the Atom 500 (500ps, 500kg), and Caterham already run one in the Leviathan..or somat daft like that. At over 100k each, I don't think they're welded up 'busa motors..but they are derived from the same methods..
Levante..sorry
Edit again..lol..looking into it, the atom is 2 busa motors
Levante..sorry
Edit again..lol..looking into it, the atom is 2 busa motors
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