So, very shortly after road-user charges were introduced into New Zealand, New Zealand had the benefit of receiving a large number of light diesel-powered vehicles—what we call utes or sport utility vehicles (SUVs). Some of us are lucky enough to have turbocharged diesel engines in our utes and SUVs, which are actually highly efficient with very high compression ratios. They're great for towing. They're great for hill climbs and for sandy and muddy conditions. But, of course, these vehicles, when they're used on road, have to pay road-user charges. 