You don’t simply shoehorn in a 3.8-liter twin-turbo V6 where a 1.6-liter inline-four used to be. It takes a lot of reconfiguring, as the team at Nissan found in building the segment-busting Juke-R.

Not only did they have to fit in a bigger engine – removing the bulkhead altogether and building a new one around it – but they had to make room for all the cooling systems necessary to keep it running optimally. That means more air openings than a stock Juke fits in between its bug-eyes. And that’s before making room for the GT-R’s all-wheel-drive system and dual-clutch transmission.

Follow the jump to see how they pulled it off in the fourth of the Juke-R build video series.