Imagine the scale models you could run these in!?!?!?!?!!?
V12 modelled after a rolls royce spitfire engine! by Artus Motor
http://www.youtube.com/watch?v=0gsqzMZh0iU&
http://www.youtube.com/watch?v=qb1xsXxIfr8&
Radial 14 Cyl by Artus Motor
http://www.youtube.com/watch?v=jAAjkcTqYCQ&
And something even wilder!
Scale 512 Ferarri Flat 12
http://www.youtube.com/watch?v=uzPvPowrm6M&
And another by Barrington Hares
http://www.youtube.com/watch?v=0xe1LL1IC7Y&