Welcome. Can you put your curb weight in the car's profile? I suspect that, like myself, many users here are so unfamiliar with that car that we wouldn't even be able to guess.
My friend Google says it weight about 2800lbs (1270kg) with manual tranny.
EDIT: It is a gorgeous car, BTW. I'm envious, both of the way it looks, and that it comes in Diesel. I think the only company selling Diesel convertibles in the US is Mercedes. Maybe VW. Does the EOS come in TDI? (I'll go check).
EDIT2: No, the EOS doesn't come in TDI (at least not here). Incidentally, the spec on the I4 Turbo calls for 95 octane gas! It says "91 optional with reduced performance". Yikes!