The two cars are already produced on the same platform fordarn, Focus and Mazda 3... the Ford C1 platform, same as the Volve S40.
As for the boost, I can assure you it hits maximum, the guage sweeps the entire range however I apologise, it's a maximum of 1 bar, I checked my photos. There are photos floating around with 1.2 bar and some with 1 bar on the net, the car I drove had a 1 bar max and at full throttle it genuinely hits 1 bar on the gauge.
