Blac Chyna Buying a $400k Push Present

Blac Chyna's new baby girl is going to be cruising in style because Mama's 'bout to drop serious coin on a new family car ... and it ain't a minivan.

We're told Blac Chyna is in the process of buying a 2016 Rolls-Royce Wraith. Starting price for the car is about $300k, but we're told Chyna's shopping a $400k fully loaded version. After all, she'll be tooling around with the newborn and 4-year-old King.

She was spotted at the Bev Hills Rolls dealership Wednesday afternoon eyeing a white one. Clock's ticking to close the deal ... Chyna's due Nov. 16.