Many dealers are offering around $2500 right on their website, prior to any negotiation. A few dealers are offering around $3200 on a few specific cars. One poster here reported he got $4160 off MSRP and I independently confirmed that with the dealer.
Right on the Rydell web site, for example, several cars at $3200 off
Greenwood Chevy has one particular car at $3468 off. If that one were an Premier in a color I liked, I'd have grabbed it.
And these were just one's I found by accident, not with some search on discount. And remember these are their "ask". It may be possible to do better by bargaining, I don't know.
So somewhere in the low three's is OK, high threes is pretty good, and in the low fours has happened.
2013 Ford Focus Electric 51000 miles in 34 months, returned
2014 Volt, returned
2014 Volt, returned,
1967 Corvette 427
1962 Corvette 327