Model X Long Range – 2459 kg without passengers or fuel (7 adult capacity).
Tesla Model S Performance – 2241 kg without passengers or cargo (5 adult capacity).
Tesla Model S Long Range – 2215 kg without passengers of cargo (5 adult capacity).
Model 3 Performance and Long Range AWD – 1847 kg without passengers or fuel (5 adult capacity).
Nissan Leaf – 1775 kg without passengers or fuel (5 adult capacity).
Chevrolet Bolt – 1616 kg without passengers or fuel (5 adult capacity).
Opel/Vauxhall Ampera-E – 1611 kg without passengers or fuel (5 adult capacity).
Renault Zoe, 44 kWh – 1480 kg without passengers or fuel (5 adult capacity).
Hyundai Kona – 1399 kg without passengers or fuel (5 adult capacity).
BMW i3 – 1343 kg without passengers or fuel (5 adult capacity).
Based on this, and the upcoming plans of many automakers to launch pickup truck and SUV type EVs, I would say that a significant portion of EVs will be heavier than the average car on the road currently.