Came across this website for Jet Boats www.jettec.co.nz
Wonder if they are as scale fast
as the full size boats (0 - 100 mph[?] in 3seconds)?
The race web site (http://www.nzjbrra.co.nz/
) quotes " Race boats navigate the challenging waterways of New Zealand at speeds of up to 140mph."
Could be quite interesting but expensive!