Anyone have a recommendation for a lightweight, quick-drying outdoor cover specifically made for Exige V6? 

It'll be used on the go so needs to fold up really small. I love Weathershield HP from Covercraft, but unfortunately they don't make a custom one for the Exige V6. It feels like nylon windbreaker jacket material--not porous at all, and dries extremely quickly with the lightest breeze and sun, so it's not a soggy ball when you pack it up: https://www.covercraft.com/product/custom-weathershield-hp-car-cover/C-CCHP

This is the closest I've found, but I've had something similar to this and it absorbed water and took a long time to dry out: https://www.specialisedcovers.com/stormshield-outdoor-cover

Any suggestions? Thanks! 

Have you looked at the OEM covers available in our shop. Little secret, they're made by Specialised and this material is similar to a softshell jacket. 

https://shop.thelotusforums.com/collections/official-lotus-car-covers

I did, yes, and ordered one! The quality was so good I almost kept it on that reason alone--was gorgeous--but alas it took up more space when folded than the really thin ones, so returned it. It was a much better level of protection, too. But I'm looking for something really lightweight for just occasional overnight use. Thanks for the suggestion, though. 

Hmm, how about one of the shower caps? 

Shame Covercraft won't pattern up the Exige. 

I'm looking for a bit more protection than a shower cap... mostly to keep the car clean overnight, and not attract attention when it's parked on an open trailer in a hotel parking lot....