Thanks to all who replied basicly im the wife brooke 25, of hubby colin 31, whos building datsun1200 ute, as he works 16 hr days im online daily(ebay powerseller) i come to this site to get info for his little ute that we both love, I like the idea of the rotary and made the sudjestion as its something different, this ute is for a everday street driven ute cruising and driving to work ute something with power and performance the cheaper cost rotary vs sr20 must be some what good in fuel (which one would be better in fuel, or much of a muchness) im just weighin up cost, cost in fuel and ease of fitting and installation of engine mounts the cost of it all and the time it takes with all that said which is the most suitable engine :)