GoldenJoe

You can use any sizes that are stated in the car manual.    https://www.adac.de/rund-ums-fahrzeug/ausstattung-technik-zubehoer/reifen/sicherheit/reifengroesse/    

Got my permanent residence permit (Niederlassungserlaubnis) today    Munich. Applied in May, in June got a letter with the PIN.  Regularly checked https://www17.muenchen.de/EATWebSearch/ --> "The card is not ready for pick up". Last week wrote an email to Ausländerbehörde.  Next day https://www17.muenchen.de/EATWebSearch/ --> "Unknown document".  "Coincidence? I think not" (c)  Today the card was delivered to my door     Now I am a bit more "white" person.

https://www.dailywire.com/news/george-floyd-body-cam-footage-is-out?%3Futm_source=twitter&utm_medium=social&utm_campaign=dwtwitter   I'm quite surprised that the policemen did not beat him after the first minute of his circus of crying and resisting. And there was absolutely nothing racist, imo.

https://knowyourmeme.com/memes/karen  

shows that the arrested people were mainly from other countries.    So there is no need to pull the owl on the globe

It looks like blackmail. I'd go to the police and file a complaint against these MFs.  1000 €. Why not 1 million then? 

When applying for NE you have to have a job, but it does not matter if you were unemployed for a while before that.    See here http://www.muenchen.de/dienstleistungsfinder/muenchen/1080805/ Das Wichtigste in Kürze

Yes, it will. You need at least 21 months of pension payments.   There was a similar topic recently: https://www.toytowngermany.com/forum/topic/387910-permanent-residence-permit-for-a-blue-card-holder-when-there-is-unemployment-gap/  

No.   There might be two other problems though:   1. During probation Ausländerbehörde will refuse your application. In Germany it is usually 6 months, so John should wait until then.   2. The data about John's pension payments usually updates only once a year. So if John requested this information, he would get the data till 31.12.2019.    In the attachment a part of my data. You can see that I changed the job but with no gap. 

  As a passenger I do support your last sentence, but I disagree that Germany should give aid to non-German companies. These companies should ask for help their countries.  Why would not Italy give money to Lufthansa? Oh, it is in a huge debt and it helps AlItalia, but nobody wanna block this help with the hands of  the EU bureaucrats. Looks like hypocrisy and double standards to me.

Do the free A1 course here https://learngerman.dw.com/en/overview  It will not take a lot of time and it is just short videos with some exercises afterwards.    Or do the placement test first, maybe your German is already at A1. 

Just google "hobbywerkstatt". There are plenty of them in Munich. They charge for the lift, though you don't need it for a motorbike so they might charge you smaller fee. Also they have a lot of tools and containers for old oil and other stuff. 

With the rental prices in Munich I will buy something as soon as I have a chance. Renting is a waste of money, imho. 

I would recommend Toyota Corolla e12 with petrol engines. The car is not engineering advanced like the same age European cars but it is very reliable and mainly requires only maintenance. In addition, it has a timing chain which don't have to be changed regularly like a timing belt.   If you can find it with fresh TÜV or 1 year left, it is also a good sign. If it has some scratches (not to the metal) and / or small dents, it reduces the price without the lack of the technical quality. Don't trust the mileage but look at the tear of the driver seat, buttons, safety belt, armrest etc.    I personally have e12 wagon and am quite satisfied with it.    You can look at other vehicles with the similar specs: petrol, timing chain, simple suspension (MacPherson front, torsion beam back)    The cost of renting a car might be cheaper, but not everything measures in money. I don't like rental equipment and prefer to have all things I use regularly.