clean sheet design
aiming to keep it light to loads down, hub motors to get rid of driveline losses....... even a 5th wheel regen braking - lots of randomness - lots of ideas that will probably not work. I think it was Edison who was asked how many failures did he have at making a working lightbulb. he answered - none. asked if this was incredibly lucky to get it right first time , he said 'no, I found thousands of successful way of making a non-working bulb and one way of making a working one' there alone is his genius (parapharsing hugely there!!)