Definitely anything over 2 tonnes should be paying a lot more tbh. At that point it's just getting ridiculous.
Exactly!
That's probably 90% of road traffic these days

.
Which is mental when you think about it, is that we don't live in America etc with massive wide roads, so why driving cars too big/long for roads/car park spaces?
Why are these cars deemed suitable for our roads/market?
A 3 series now is bigger than a 7/8...
The 2006 E92 3 series, are made of mixed materials like alluminum, plastic, steel, which are used wherever possible on panels like the boot/bonnet/wings, and on the 325i/330i models they used magnesium/alluminium composite for the N52 engine block, all to keep things light but maximise space/handling, it also meant it didn't need bigger brakes than the previous generation E46 330i model, thus keeping the weight down again, ironically a 325i E92 can be 1420KG depending on spec, and a E46 325i Ci (coupe) starts at 1385KG, then compare how much bigger/luxurious a E92 is, without being too big, and the room inside is way better utilized than new cars today on a weight versus size ratio.
An RS7, is a 4 seater with no headroom in the back, why not a 5 seater for a start, and why give it the coupe roofline that only allows people sub 6 foot to barely sit in the back or just kids, yet it's huge? Other than fitting like 5 bodies in the boot, it's just wasted space. Yet an S8 from the 90's, all the leg room/head room and the luggage capacity.
I understand that we have to have crash structures, but you'd be surprised how well a lot of lighter tin can older stuff from the early 2000's crash, the 2001 Civics, have an NCAP 4/5 rating for adults in a crash and 3/4 for pedestrians, and they weigh 1165-1250KG
https://www.euroncap.com/en/ratings-rewards/latest-safety-ratings/en/results/honda/civic/15543 and that's just a cheap little civic.
We all saw that Top Gear years ago showing all of the Euro NCAP ratings of each car, then ending on ironically, how lethal something big like a Range Rover crashes, impaling your legs with the A pillar even if you're Richard Hammonds height, so big doesn't always mean safe - yes I know nowadays the crash technology is obviously way better, but it doesn't have to be 2 tonnes and above to achieve it.
There are so many 2+ tonne cars now that are still ICE, so why are they so heavy yet feature barely any extra cabin space/seating?