The only good that I've found to be noticeably cheaper is petrol.
And that is because the vast majority of the price of petrol here in the UK is tax (in fact, multiple taxes). Successive UK governments have long used tax policy, on fuel and otherwise, to deter the use of wasteful, highly polluting vehicles. This has arguably been somewhat successful, though it will be a moot point within a generation in any case because eliminating petrol and diesel vehicles entirely is clearly the goal for several good reasons.
And that is because the vast majority of the price of petrol here in the UK is tax (in fact, multiple taxes). Successive UK governments have long used tax policy, on fuel and otherwise, to deter the use of wasteful, highly polluting vehicles. This has arguably been somewhat successful, though it will be a moot point within a generation in any case because eliminating petrol and diesel vehicles entirely is clearly the goal for several good reasons.