looking to get into a 2012 XKR with 30k. Looking to do some of the maintenance myself. Some things on this supercharged engine look like quit a few things would have to be removed to even start the work on. Just wondering if it feasible to DIY the following...also other simple DIY not mentioned:
Oil/Filter
Trans fluid/filter
spark plugs
Starter
fuel pump(s)
fuel injector
spark plug coil
headlight bulb

Yes. Look at the DIY thread in the stickies at the top of this forum. Lots of useful info there.

appreciate it...

Do be aware, however, that these things are a bit more in-depth than a normal DIY kind of thing. Most engine work requires the removal of the supercharger and intercooler to do anything at all, and it's not really the lightest bit of kit and a bit much for one person to handle. Just changing the plugs takes a full day, and the Direct Injectors require a special tool to remove and run off high-pressure pumps. Like a LOT of pressure. 2000 psi type. 140 BAR.

At least an engine oil and filter change is a piece of cake, waaaay easier than most other cars!
You pump the engine oil out from the top using a vacuum pump/extractor (Mityvac is a popular brand) and the filter sits on top of the engine, so no need to get under the car and squirm around in the dirt removing eleventy million bolts to then access a drain plug and filter and cover yourself in hot engine oil.
You can do the whole job in around 15 minutes while dressed in your Sunday best.