He mostly stood rather than sat.
And generally preferred air travel (Ju 52 and later four-engine FW 200 Condor) to train or car.
He (or better: the German government) had a couple of these cars, most survived the war and were in circulation with collectors or people that wanted to allegedly blow them up. Hitler was the first politician in Germany to extensively and strategically use air travel, it made him omnipresent and was key for his early successes as a campaigner. Most people had never caught a glimpse of the Kaiser, but unless you wanted to avoid him, you could see Hitler plenty. It's Hitler's aircraft that tell a story, not his cars.
I have a neutral stance on Nazi memorabilia like this, I find it neither collectionworthy
nor (for ethical reasons) -unworthy (the car didn't do anything). That Jewish organisations would not want any proceeds from this, that I understand only too well though.