The P-82s had a length much bigger than the P-51s, but some twin-engined twin-fuselage P-51s were designed in 1941-44: symmetric P-51ZA, P-51ZC, P-51ZD, P-51ZJ (with the same profile as P-51A, C, D, J hiding the tailplane), asymmetric P-51ZAC, P-51ZDJ:
