Hi, I owned a series IV 300ZX about 10 years ago and I have been looking at a 370Z but I am a bit confused by the running costs.   I currently own a 2011 Jaguar XKR which has the 5.0 supercharged V8. Looking at the numbers the 370Z with the 3.7 V6 pays only £15 less in tax, and has the same (terrible) fuel economy. Is this right? I find it very hard to believe that in the real world the 370Z is that bad in terms of pollution and economy.   Also, 370Z's registered after 2017 p