I don't pronounce it with a T! Neither do I hear anyone else say it like that (British or American). The endings of saved and received are the same, both ending in D. Granted, the D sound is very close to a T, but not the same. And burnt is spelled with a T, burned is pronounced with a D, just like saved.
Results 1 - 10 of about 331,000 for "burnt toast".In AE, it got burned (with d sound), so now it is burned (t sound). However, if my friend got sunburned (d sound), he is now sunburned (d sound again). No idea why.