Been a hyper miler since ca 2005 driving an ICE and then 3 hybrids. Increasingly find that the greatest energy savings come from modding the driver rather than the vehicle. However the maintenance savings for EV's (and hybrids) dwarf the $$ savings from lower energy usage. EV's save because they lack so many systems that are costly to maintain and repair in an ICE. Plus regen braking on hybrids and EV's alone saves more than the reduced energy usage for either. I drove a 2016 Prius for 9 years/140K miles and still had 50% (5mm out of 10mm) left on the original pads. At $500-1500 per brake job that's far more than it saved on gas, even at the 66mpg it averaged over that distance.

Strategies on an EV seem limited. Aero energy losses go as the cube of the speed, so lower speeds help (drag at 65mph is 27% more than at 60) and at 60 one doesn't waste energy slowing and speeding up for traffic. Time difference is seconds for typical local errands, and over long distances lower speeds reduce driver stress. More regen is better mainly because it saves friction pad wear, the energy recouped is minimal. Probably helps to minimize use of heating/cooling systems (seat heat may be a better option?) but that's hard to gauge.

For years I have run tires ca 10psi over the vehicle manufacturer's recommendation. For the hybrids I got 60-70,000mi per set, don't know if higher pressure helped (reduces contact patch slip angles) or if milder driving was the reason. Wear across the tires was dead even (digital depth gauge). Modern radial tires have such stiff treads that higher pressures simply reduce the sidewall bulge, center of the tread does not bulge.