they have A, B, C, E, G, M, R, S classes. under S and C class,
we have SL/CL, SLK/CLK, SLR and CLS.
Class ranking: S, E, C, A.
A are super minis entry-level cars.
C are compact (mid-sized) entry-level luxury cars.
E and CLS are mid-sized cars.
S are full-sized (limousine) cars.
SL and SLK are roadsters.
CL and CLK are coupés.
SLR is McLaren.
G are SUVs.
GL, M and MLK are Crossover SUVs, or XUVs.
B and R are MPVs.
the first 2 number is an indication of the engine displacement,
e.g. E220's have a displacement of roughly 2.2 litres. but this
comes with exceptions, e.g. C-class C180, C200 CDI and C240.
Non-class (not for first alphabet) designations:
L = Leicht (light). used to be long wheelbase.
R = Racing
S = Sportlich (sporty)
K = Kompakt (compact)
D = Diesel
CDi = Common-rail Diesel Injection
