[Spivak]

> Electric cars are technically superior once all the problems that make them inferior to petrol cars are solved.

Not exactly a glowing recommendation.

[Skunkleton]

> Trains are technically superior to cars, once you figure out the problem of needing tracks.

[ceejayoz]

Those items - stuff like price, charging time, range - have seen large improvements and can reasonably be expected to continue to improve.