The BMW Alpina B3 Biturbo is certainly not discreet when it comes to numbers. Its twin-turbocharged 3.0 liter straight six engine develops 404hp and 600 Nm of torque and has a top speed of 306km/h and sprints to 100km/h in 4.2 seconds.

But they're not just fast. Chris Harris found that it's perfect for every day driving too. Check it out after the jump: