Well, not the entire car, yet
This fella here:
http://www.gizmag.com/nissan-zeod-rc-engine/30611/?li_source=LI&li_medium=default-widget
is holding in his hands a 400 BHP, yep, engine that fits into carry in luggage restrictions. 40 kgs, or 88 lbs, can be carried by a reasonably strong person.
3 cylinders.
Quoting Jeremy - How do they do this?