Allert Jacobs updated his site over the summer of 2010 (http://www.velomobiel.nl/allert/Recumbent%20motorbike.htm):
he has now reached his target of 235 US miles per gallon on a public highway at 55 mph (max speed 85 mph). I suspect he could do even better with a head fairing. SC.

2017 Update. The article is still there, but the above link doesn't always seem to work, just try Googling 'Allert Jacobs + Honda Innova ANF 125"
However, since the end of 2010 Allert seems to have concentrated on human-powered velomobiles, or 'velomobielen' in Dutch, hence the website name. PNB

2019 Update. There's a great little 6minute video from 2012, shown on Dutch TV, (with English subtitles) all about Allert's excellent machine, here:
https://tinyurl.com/y4sa647a
Or search on YouTube for: Ligmotor van Allert Jacobs / Feetforward streamliner
PNB