I did some research an d found the VW is avail in 165 HP and 225 HP mated to the bravo . The numbers on the example boats(specifically 20-22 ft boats) were impressive in terms of speed and fuel consumption. look at the WOT and Cruise Ranges and fuel consumptions , look at the speeds WOW !
http://www.vw-m.de/index.php?id=172&L=1&tx_prisreferenzboote_pi1[view]=details&tx_prisreferenzboote_pi1[uid]=35&tx_prisreferenzboote_pi1[amotor]=9&tx_prisreferenzboote_pi1[dstart]=10
I also discovered Ring Power is distributing and servicing them.