2023 BMW Alpina B4 Gran Coupe is an M4 alternative

Alpina on Wednesday revealed a new generation of its B4 based on the latest BMW 4-Series. While the last B4 used the 4-Series’ coupe body style, the new one uses the more practical 4-Series Gran Coupe as the basis. This should help differentiate it from BMW’s own M4 which isn’t available with the 4-Series Gran Coupe’s hatchback body. The 4-Series…