A quick search gives this result (
http://www.aeroflight.co.uk/profile/d335hist.htm) .
With these performance numbers:
"In late 1944, the Do 335A-1 superseded the A-0 on the production line. This was the initial production model, similar to the A-0 but with the uprated DB603E-1 engines and two underwing hard points for additional bombs or drop tanks. Delivery commenced in January 1945.
Capable of a maximum speed of 474 mph at 21,325 ft with MW 50 boost, or 426 mph without boost, and able to climb to 26,250 ft in only 14.5 minutes, the Do 335A-1 could easily outpace any Allied fighters it encountered. It could also carry a bomb load of 1100 lb for 900 miles.
Although given the nickname 'Pfeil' (arrow) by Dornier test pilots, on account of its speed, service pilots quickly dubbed it 'Ameisenbaer' (ant- eater) because of its long nose."
Wonder if this started the Dornier tradition of always designing the fastest version of an obsolete type of aircraft (Do-227, -328).