LPG had the same problem as electric cars. In the early years there was no infrastructure and so if you buy one you're an early adopter and you can't actually go anywhere. It took a while to get that infrastructure and now electric cars are useful for most trips. You can use LPG cars to go for most trips in the US even today. However, you better plan ahead because finding a place of fuel is going to require some effort. I had a few LNG stations near me, but they seem to have all been torn out, meaning that never made it.

Gas cars faced the same thing when they first came out but by the time they became used for longer trips there was gas everywhere and in the meantime there was gas at least where you bought the car and so it was good enough for the short trips that bought it for.

That was kind of it. Until maybe five years ago, every branch of Morrison's had two LPG pumps at their petrol stations, as did Asda.

Now it's mostly wholesale fuel suppliers that have pumps.