Cardiff drivers hate people leaving rubbish in their car.
About 64% of Cardiff drivers questioned for an ATS Euromaster survey criticised the litter louts but the thing Cardiff drivers are most okay with were passengers calling other people & sleeping on long journeys, 5%.
Two petrol engined models won classes in the Towcar Awards this week but the best overall newcomer was still a diesel, the VW Arteon 150ps 2.0TDI.
Professionals tested 40 new cars this year over nine classes including the first all-electric car, a Jaguar I-Pace.
Outgoing PM Theresa May has said a legal net zero emissions target will be enforced by 2050.
It means new motor vehicles and trains will have to use neutral fuels and probably be all electric or hydrogen powered.
Uber and Volvo have joined forces and shown a XC90 SUV which is capable of fully driving itself without human intervention.
There will, however, be a Mission Specialist overseeing the car when running in automotive mode.