B-25s and Bostons. A considerable number of American B-17 and B-24 bombers force-landed in Eastern Europe were also repaired and taken into use by the Soviets (in particular in connection with shuttle-bombing Operation Frantic). All modeled. Just put a Soviet dress on `em.
Oh please! I'll try and forget the B24 and B17 comment, which is just plain silly. To think that enough numbers of them were forced to land on Soviet airfields, and the reds were able to maintain/train up them into a force that had any impact is just a plain silly notion.
The B25 and A20s werent on the same level as airplanes like the TU2 and Pe2. Not in performance, bombload, anything. Soviet industry produced many outstanding warplane designs, most of all considering the stresses they were under at the time. They not only had to pick up and move most of their Indistrial base but many of their designers started the war sitting in Gulags. Still however there seems to be much disrespect in the west regarding WW2 Soviet warplane design and production.