Cant speak as a former owner of a Regata, but as my perents had a 91 Tempra 1.6SX I had plenty of use of that myself. for MPG I think it avaraged about 35mpg. Acelleration wise, well 0 - 60 in 12 secs was the offical timing, Not exactly the quickest but being a heavy car it was quick enough, and very very stable at speed. Found the car to be spaceious in the front and rear, wearnt struggling for leg room and also although the boot looks small, it can swallow a whale, its huge.
Hope thats of some help to you
Scorg
02 Stilo Dynamic 1.6
Sky Blue
01 Brava 80SX
Ink Black
June 6th 1944
You will not be forgotten