Some get high on drugs, some on alcohol, others on petrol vapours!
At school kids got high on glue. Each to their own I guess!
Certainly some (combusted) petrol vapours are quite pleasing, generally from old cars. Unburnt petrol is rather less attractive though!
Meanwhile, whilst on the subject of tax breaks, wasn't it the case that in the early 2000s there was a lot of subsidy for LPG-powered vehicles? A lot of infrastructure (eg: filling stations) was put in place for it. Then the government realised it was losing money and stopped the tax benefits; as a result, the entire LPG system broke down and now no-one uses it (for cars at least!). I wonder what the car market would look like nowadays if LPG had developed into a more mature market?
Also, in Sweden I believe you can run cars of ethanol, which is far cheaper than petrol/diesel (at least, it was when I was last there about 10 years ago and one of the family friends we were staying with had a car powered by it). I wonder why that hasn't caught on here?
Back on topic (

), I don't think that electric cars have necessarily been "oversold", but perhaps a bit too much faith has been placed in them. Though with the pace of technological development which seems to be happening, perhaps not!
For me, I think the ultimate test of when purely electric cars are properly viable will be when my dad gets one! He recently got a new hybrid as a company car to replace his previous 2012 diesel; apparently he semi-seriously considered getting a Tesla, but decided against it (not least because that would have a retail value over the £40,000(?) threshold for "luxury vehicle tax" (or whatever it's called) on top of whatever standard car taxes are payable (though I think that's zero for electric cars at the moment?); one of the main incentives for getting a hybrid (apart from the fact that he can get to work and back on electric*) was the reduced tax, so "luxury car tax" somewhat defeats that object!). We'll have to see what happens in 3 years' time when the new lease runs out...
*And because his new car runs on petrol, he can "accidentally" fill up a petrol can at the same time as the car and have it paid for by work. If, by some mysterious circumstances, the petrol from that can finds its way into the tank of one of his classic cars (or "mid-life crisis" Porsche Boxster

), that would be a bit of a coincidence...

