Chinese tricycles
 

http://2.bp.blogspot.com/-4-FcfLTA0z...to4889_001.jpg
These ones are fitted with an average copy of the Honda CG125 engine, an usual practice among Chinese motorcycle makers.
http://4.bp.blogspot.com/-7URcjErTDn.../Photo4898.jpg

There are also other models with engines bored up to 200cc and with an oil radiator.
http://2.bp.blogspot.com/-lel5zyqSPs.../Photo4860.jpg

Jack it up, fit it with rims and a muffler delete and it might sell here.

They're selling like hot cakes in Uruguay after the registration of newer light Diesel vehicles was forbidden back there.