To answer the question about rebates in 2023, the IRS has published guidance for the next three months. All North America assembled vehicles will get $7500, including the Chevy Bolt. There is a pretty good chance that Illinois residents could also get $4000 from the state, so $11500. For best chances at the Illinois rebate you will want to buy in January. Unfortunately the Chevy dealers have noticed an uptick in volume of calls and marked up their Bolts. If you can get one for MSRP, then it's a good deal. It's also worth remembering that to get the Illinois credit you have to buy from an Illinois based dealer, not out of state.
https://www.irs.gov/credits-deductions/manufacturers-and-models-for-new-qualified-clean-vehicles-purchased-in-2023-or-afterYou can expand each manufacturer and see what vehicles are listed. Please pay attention to the MSRP. For example, the Tesla Model Y only qualifies at $55,000 MSRP unless it's the 7 seat version. Since you can't currently buy a new Model Y for $55,000 you have to spend an extra $3000 for the 7 seat configuration to get the $7500 from the tax credit.
Income limits still apply, so double check that. They have also mentioned that you can either qualify for 2022 or 2023 income, whichever is lower, which is generous of them.
