I don't know, but is it either a BL (or whatever they were calling themselves that week ) or a Sunbeam? The door handles and wheel trims look vaguely BL, but the overall shape look Sunbeam-ish to me.
AFAIR, the car was never put into production. But the design house that styled it made a few changes which, combined with a few styling cues from a Volvo project they worked on produced that car:
PLUS
EQUALS
The bumpers and front indicator on the Tundra look similar to the ones on the BX.