So we lose: Engine: 2,880 lbs. Transmission: 690 lbs. Fuel: 125-300 Gallons, so let's say 213 @ 6.073 lb = 1,294 lbs. So we lose at least 4,864 lbs. But you gain: 3) 100kWh packs @ 1,500 lbs/each = 4,500 (2170 based packs should weigh a little less.) Electric motors: ~500 lbs each. (including invertor and differential) probably need 2? 1,000 lbs. So you gain 5,550 lbs. For a net difference of 636 lbs. (And I am sure there could be more weight savings, but you might need another battery pack...) Of course there are other things like cooling systems, etc. So with some work it should be reasonable.