Some cars leave a paper trail; the Alpina B10 left a name and a place in Alpina's list. What follows is what can be said with a source behind it.
Its place in the line
Nearby in the Alpina catalogue sit the Alpina B10 (E39) and the Alpina B10 Bi-Turbo.
The record
The open record for the Alpina B10 carries no verified engine, output, weight or price yet. MotorJury does not fill gaps with guesses; this entry gives the model a home in the catalogue and grows as sourced specifications and photographs arrive. Corrections: corrections@motorjury.com.
Alpina B10 (E39) 
Alpina B10 Bi-Turbo