According to the original B&V company projects list, the P 63.01 had a starting weight of 10,400kg, an empty weight of 6,900kg, wingspan of 17.5m and wing area of 60m2. It was powered by a single Jumo 212 B and is indeed described as a 'Schnellbomber'.

The P 62.02 also had a single Jumo 212 B. It had a starting weight of 9,400kg, empty weight of 6,540kg, wingspan of 18m and wing area of 60m2. It is described as a 'Stuka-See unsymmetrisch'.

The P 62.01 was the same except it was powered by a single DB 606.

The P 89.01 was a Fernzerstoerer powered by two Jumo 212s (no 'B'), although '2 DB 606' is mentioned in brackets afterwards. This had a loaded weight of 24,400kg, empty weight of 13,400kg, wingspan of 28m and wing area of 100m2.

I think those are B&V's only linked engine projects.

The P 163.01 had a starting weight of 15,000kg, empty weight of 9,400kg, wingspan of 20.5m and a wing area of 55m2 - a completely unrelated and much later project. The P 163.02 with Bramo 803 was slightly heavier and the P 163.03, no engine specified, was quite a lot lighter at 14,180kg and 8,900kg. None of the project designs are given lengths on the official project list, only wingspan and wing area.