Gas, gas, gas,
the never ending story. Here in Italy gas and diesel were always expensive. Don't remember that long back, but in the eighties we had to buy coupons which you had to show at your gas station, those guys, particularely in south tweaked off a certain sum for "service" from this amount. Right now we pay for one litre diesel €1,49 - €1,57 and gas up to €1,75.
Didn't reduce road traffic at all, but our governments are every day eager to tell us humble citizens how bad we are to drive cars, motorcycles, and pay those high taxes to enable their €€€€€ salaries.