Used car market in France
Each line shows its share of all cars from that year and earlier — a running total, so later years build on the ones before. Reading left to right, a line that climbs has grown more popular over time, while one that dips has fallen out of favour.
Countries
Cars are grouped by where their brand comes from, not by where they are sold — a Peugeot counts as French and a BMW as German wherever it sits today. It shows whose carmakers fill the market.
Brands
The five brands that turn up most often. A line that climbs means that badge makes up a bigger slice of the cars on offer; one that falls is being crowded out by the others.
Models
The individual models that are bought and sold most. One model is only ever a small part of a whole market, so these shares are much smaller than the brand ones — a couple of per cent is a lot here.
Fuels
How the market splits between diesel, petrol, electric and hybrid. Watching where the diesel and electric lines cross is the quickest way to see how fast buying habits have changed.
Gearboxes
The split between manual and automatic. The two lines cover the whole market between them, so whenever one climbs the other has to fall by exactly the same amount.
Categories
The shape of the car — small hatchbacks, estates, saloons, SUVs and vans. This is where the rise of the SUV shows up most plainly.
Colours
The five most common paint colours. Colour has nothing to do with how a car drives, but it does affect how quickly it sells and what it is worth second-hand.