Yes there are. Quite a few.
The drive-in business model is not the strongest in CEE, since many Europeans are less dependent on cars than North Americans for reasons of smaller average distances between desired destinations, denser cities, higher fuel costs and generally good public transportation infrastructure.
I cannot find a legal separation between what constitutes a drive-in vs a drive-through in Germany or Austria, but I am certain that neither would entail a waiter or waitress serving food on roller-skates. It stands to reason that business owners would go for the name that is currently most popular in the news and people's minds.
A drive-in with waiters serving you food to the car includes higher operating costs, legal liabilities and higher risks for the waiters.
My best bet for finding said "drive throughs" would be the vicinity of suburbian shopping centers in countries with weak labor unions and low to no minimum wages.
BTW: If it is too much trouble to pull down the car window twice or keep it open until you receive the order, there are some drive-ins where you can order via a mobile app.
If you have carpal tunnel from all that hard typing work, or other disabilities just make sure to let the staff no beforehand and they will most certainly bring the food in your car. Probably not on roller skates though ;)