Tesla typically markets the price of their car inclusive of tax rebates. Pricing it below an entry-level 3-series would be foolish, so I'd definitely expect to see it at ~$43k (probably $45k with 2 years of inflation).
He's also said that the price point will the equivalent to this price point so I'd assume that it will be adjusted for inflation as well. Then after options (supercharging, tech package, maybe larger battery pack, etc), a more realistic price point would be between $40-55k. But for a stripped down version, you'd still be able to get away with $35k.
