There seems to be a few conflicting opinions about this.

I would like my Rhino to provide more grunt uphill as i live in hilly area - so i assume a 750w motor would help ( i have 250W UK legal one currently)

I'd like to insert the larger motor internals into existing 250W casing (as shown in couple of videos) - cant see how Police would be able to detect this especially if 250W stickers retained.

Do i also need to upgrade the Motor Controller at same time? Or can existing kit cope? Is this a give away to authorities?

Could someone send me links to where i should buy Motor and Controller  - is this a sensible idea or one likely to blow up in my face?

Any advice appreciated.