It is unclear whether you can switch directly to the GM Business Card as they have different issuers. With GM BuyPower card no longer accepting applications in late 2021, the grace period to switch may have ended. It would be best to contact Capital One’s customer service directly for answers.\r \r \r If you cannot switch directly, it would be best to apply for the GM Business card before closing the account with Capital One. Not only will you gain new benefits and reward tiers, but you’ll also receive 0 percent intro APR for 12 months. Then, an ongoing APR of 16.24 percent to 26.24 percent, variable.