Technically, it’s EM because of the Cobalt turbocharged engine displacement. DM has a maximum engine displacement of 2.0L normally aspirated. A forced induction engine is based on the computed displacement of 1.4 times the actual displacement which would be 2.8L for the Cobalt turbocharged engine (
Solo Rules section 18.0.B, Engine Classifications, page 117).
But the Goblin is not actually based on any production car. It’s more of an AM car per the
Solo Rules.
Now the local SCCA Region can classify cars as best for their Solo program per
Solo Rules Section 1.1 (page 19). So it’s fine for you to run in EM or even DM if the Region Solo officials allow it. But Nationally, the Goblin is an AM or BM car per the
Solo Rules at this time. Most of my previous email was to explain how to get the Goblin classed in the Solo Rules. Personally, I think it would end up like the Ariel Atom and only be eligible for AM or BM at SCCA National Solo events.
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Doug
Doug Gill
SCCA Solo Competition Manager
1-800-770-2055