[Dannycheeta]

Congrats on the R. They are fun cars to drive.
Your Check Engine and ABS/Anti Skid light are not related. You'll need to pull codes for both. Likely culprit of the Anti Skid light is a failed Steering Angle Sensor or Clockspring as some refer to it but can be a host of other issues including failed 4C shock/struts or lack of them if they were replaced with Non-4C components.
Shaking steering wheel could be out of balance tire, more likely a bent wheel.
Getting a Dice and VIDA setup will help as many aftermarket scan tools, even if they can scan all systems, don't offer the diagnostics help that VIDA will. Especially if they just report generic codes.
R's originally had the B5254t4 engine. If it was replaced, it may not have the same engine. Original B5254t4's have issues with cracking cylinder liners, many first think its a head gasket but majority of R's will suffer from cracked cylinder sleeves. You may want to investigate exactly what engine is in it. Many have replaced that engine with the B5244t5 engine found in 2005-2008 S60 T5's. Its a more robust engine with thicker cylinder sleeves. Stock 2.5L has 83mm pistons, 2.4L T5 has 81mm pistons. The 2.4 T5 variant of the years I listed also has the same cylinder head of the R which differs from the more generic 2.5L head, it has a higher height. That head requires longer spark plugs and I have found many cases in which the short plugs are installed by mistake. While they may run, they do not run very well. The coil boots are also longer in the 'R' head by about a half inch. In some cases some have just replaced the R engine with the generic 2.5L So you'll want to see exactly what engine you have.
All Turbos will leak some oil, usually noticed as a seep and can form a drip but not necessarily a "leak". Determining if its truly leaking excessively, I would clean the area of said leak very well. Then drive a bit and reinspect for leak. Easier to see the leak with dirty oil vs just changed. So if you haven't changed the oil yet, hold off to look for leaks. After cleaning and driving, oil should not be dripping onto the ground while its running, a slight haze or moisture type "leak" is considered normal, just no dripping.
These cars are money pits, there is no way around that. Prepare for many unforeseen issues.

Thank you for all the advice, I’ve come up with a plan I’m going to attempt to fix all the issues then I’m going to sell it. this is my first fast car and not gonna lie it scares me and I don’t want to get into trouble with it.

 

[Dannycheeta]

Showed my dad the car today, he usually doesn’t like working on foreign cars but I can tell he likes this car he just didn’t want to admit it lol.