We have discussed this before: classic cars (and motorbikes) in comics. They can be sketchy or lovingly detailed.
In the Tintin series appeared 'The sunflower business' (L'Affaire Tournesol) as the eighteenth album in 1965. A new Dutch translation was published in 1984.
The Sunflower Affair is Hergé's answer to the Cold War. Bordurian and Syldavian agents try to kidnap Trifonius Zonnebloem so that they can discover his plans for one of his inventions, a secret weapon that the people of Borduria and their leader Plekszy-Gladz can make rulers of the world.
And the cars that perform in it? they are great!