Car guy here. Internal Combustion Engines have some pretty complex systems that pure electric systems don't need. Water cooling and engine oil spring to mind. Timing belts need to be changed, transition systems have problems with some regularity. (Granted, most performance electric cars have a transmission too, but you can almost get away without one, so I'm going to assume more simplicity of design)

Not arguing one way or another just providing data. My only electric car is an old converted Porsche. (Transmission is still there but you can basically slap it in third and leave it there) I'll never have to change the oil on that one again, and the electric motor is simple as can be. Battery management is kind of a pain, but that's because I don't have the kind of advanced battery management a mass market car would have.

I don't have enough data yet, but my experience suggests that electric cars will have a much lower maintenance load simply because of the reduced complexity. Of course all the automation and bells and whistles will still break, and the computer control systems will get wonky.

The last internal engine problem I had was with a 200cid (3.2 liter) inline six from Ford - the pistons had to be de-carboned after a cross-country drive. This was in 1985, so I blame the 55 mph national speed limit for not letting the engine run harder. Ever since - I just do 5000 mile oil changes and 3 year coolant changes, and all is well. They're really quite reliable these days, even as the complexity has gone up with turbos, direct injection, variable valve timing, and so on.

Maybe it depends on the age of your car and how you drive it? I've had 4 Honda Accords from an 88 up to an 07 that all started exhibiting the same engine problems around the 200k mile mark. Blown head gaskets, burning oil, timing belt issues, etc.

What is a drainage problem?

Turbo-diesel fuel injection pumps are ... not the most reliable thing to have in a car.

^ This. The Model S has a lot more in common with a mid-high range Mercedes or a low end Ferrari. Anybody who owns an exotic car like that will tell you, you do not buy those for the reliability.

It's also worth noting the Model S is, and is marketed to the audience for, a performance car. When you put down that kind of money, you're going to drive it like one. If you drove a Honda like a Ferrari you'd likely break a whole lot of it's "reliable" parts too.

What I found the most interesting in that comparison is that the Tesla, although having a lot more problems in other areas, had 0% issues in brakes and suspension.

Are they using some different much more advanced technology for those parts, or it's just some problem with the repair data?

This seems unbelievable. That is 500 charge discharge cycles at 200 miles apiece. Since there are only 365 days in a year This means that your friend was driving more than 270 miles a day meaning he was at 55 mph that is 5 hours a day. This is on the order of a professional trucker once you count weekends.

This also discounts the difficultly of finding well space out chargers. It also discounts the schedule of your friend. This also makes me wonder what time you have left to socialize with your 'friend'.

If you are going to make bold claims some explanation of the detail would go a long way towards making them seem plausible.