I think it's because most people don't understand the benefits of LPG fuel, and LPG vehicles incur costs similar to other alt-fuel vehicles without enjoying benefits.
Honda used to sell a natural gas civic and you could buy a home fill station, in the late 2000s it probably made a lot sense. But now, you'd be better off getting an electric vehicle and a home charger.
I think LPG is interesting, but if you're going to deal with speciality fuel/fueling, you can just get a hydrogen or battery electric vehicle and enjoy the benefits of an electrified powertrain. LPG powertrains retain the complexity and service costs of gas powertrains with pretty marginal benefits. Electrification has its own costs but unique advantages.
> LPG vehicles incur costs similar to other alt-fuel vehicles without enjoying
Not universally true. In Italy, where regular gas prices are stellar, LPG is a relatively common thing. Not common enough, but the infrastructure is "there" (although not as capillary as regular gas) and it's advertised as a consumer option.
Honda used to sell a natural gas civic and you could buy a home fill station, in the late 2000s it probably made a lot sense. But now, you'd be better off getting an electric vehicle and a home charger.
I think LPG is interesting, but if you're going to deal with speciality fuel/fueling, you can just get a hydrogen or battery electric vehicle and enjoy the benefits of an electrified powertrain. LPG powertrains retain the complexity and service costs of gas powertrains with pretty marginal benefits. Electrification has its own costs but unique advantages.