Earlier quoted context omitted.
That (1) driving is a pre-cursor to contact with others and (2) driving requires contact with others (gassing up, toll booths, parking attendants, snacks, LE and so on) and (3) driving could lead to accidents which might in turn lead to you ending up in the ER or requiring ambulance transport.
Walking or driving can be a precursor to contact, but as mentioned in my previous comment, if you live in a large city it is difficult to physically distance yourself when walking outside. You are probably better driving to a more remote location for exercise. Generally there is sufficient distance from other people when gassing up, so that seems like a very low risk for a short period of time, compared to walking in…
If you think a pandemic is the time to start major DIY projects then you really don't get it. You're not alone in that, but that doesn't make it smart or right.