Caterham / Locost / Super 7 autocross class

So... assuming 200TW tires and a not-insane engine choice, where do the various Lotus 7 clones wind up for autocross?

For years we had one person who had several, of varying levels of spiciness, and he always ran on Hoosiers in D Mod because that way it didn't matter which one he showed up with.

Then we had another guy who started bringing his own home-built 7, and he ran in D Mod because the other guy was already there.

But now we're getting more of them at our events, and the original guy sold off all but 1 normal Caterham Super 7, so I want to make sure we get them all in the right class going forward.

Thanks!

As far as I understand it, all Lotus 7s and clones go directly to Mod, regardless of tire.

My impression is that none of the options other than maybe an original Lotus counts as a "production car", so that means a Mod category, D or E.

...Unless bike-engined, which technically get bumped to BM.

In reply to NickD and codrus (Forum Supporter) :

OK, thanks. Original, Lotus-branded 7s can be run in CS I think (CSP?  I'm away from Appendix A right now) but that is original cars with <1.4L engines.

So it sounds like DM it is, unless bike engined. Thanks everyone!

D mod if less than 2.0L.   E mod if over or if the turbo multiplier puts you over.    E mod has higher minimum weight.   tires don't matter unless you don't run DOT then you have to meet additional requirements.

Duke said:

OK, thanks. Original, Lotus-branded 7s can be run in CS I think (CSP?  I'm away from Appendix A right now) but that is original cars with <1.4L engines.

Looks like CS, SSP, and DP for original Lotus 7s.  No ST or SSM love for them, though.

Does a true Caterham qualify as a Lotus branded original? They seem like production cars to me.

In reply to Woody (Forum Supportum) :

I don't believe so since they were indeed licensed by Lotus, but updated numerous ways. Also, even Caterhams are far from 'production' since they are basically shipped to the dealer like half-assembled kit cars with lots of customization on the assembly end.

The person in my OP was a Caterham dealer which is why he had such a selection to choose from.

Thanks to everyone else for the additional detail!

codrus (Forum Supporter) said:

Duke said:

OK, thanks. Original, Lotus-branded 7s can be run in CS I think (CSP?  I'm away from Appendix A right now) but that is original cars with <1.4L engines.

Looks like CS, SSP, and DP for original Lotus 7s.  No ST or SSM love for them, though.

They technically aren't legal for C Street either, thanks to the 30 year rule.

SCCA 18.1.C.2.h

"h. All series of Lotus 7, 7A, Super 7 and their clone or kit forms (such as Birkin, Westfield, Locost) are automatically classified as Modified Tubs. This also applies to the Shelby Cobra and its clones."

Edit: that's from 2020. Not going to confirm when but the 2022 Modified rules are a bit different and seem to allow original Lotus 7 and 7A in some other classes

Lotus 7 and clones are D and E mod cars with car motors... full stop.

they're too light to hit min weight in street mod classes and xtreme street.