I know the answer to that question for my native The Netherlands. It’s 2019. In 2014 manuals had a market share of roughly 75% among new cars. In 2019? 48%. This dramatic drop is said to be caused by multiple factors:
- The dramatic increase of the market share of fully electric vehicles; <1% in 2014, 14% in 2019
- Hybrids (7.5% market share in 2019)
- CO2 emissions taxation, reducing the price difference and sometimes even making the slushbox cheaper
- The elimination of the classic downsides of the automatic
- The ‘only grandmas who can’t drive have an automatic’ stigma seems to be gone
- Crossovers: 13% in 2014, 31% in 2019
Source: https://bovagrai.info/auto/2020/registraties/2-9-personenautoregistraties-naar-transmissie/
Automatics: no clutch pedal. I know electrics don’t tend to have an automatic gearbox, but they most certainly don’t have a clutch.
Also interesting: The diesel market share was 27% in 2014, and only 7% in 2019.
That link just keeps on giving. Weight/height/width comparison of the last 30 years (top 50 best selling vehicles)
(Blue is width in m, pink is height in m, green is empty weight in kg. I guess 2005 marked the start of emission based taxation...)