Small 4 stroke engine?

karel wrote:
on the negative side: this thing wants unleaded fuel only
so no 100LL, might be problematic even in Europe
and I think worse across the pond

You can always run 100LL and use a lead
scavanger, like http://www.decalinchemicals.com/

for myself I should be more interested
to see a similar aircraft conversion
of the smart diesel engine

Last time I spoke to them, early 2003, they were
working on it. Not sure if they still are, or
what the status is.

--
Mickey