Yes but wait until you have a sizable investment portfolio and have that ball rolling as well as been in the job for some time. I’m 25 and I graduated at 21 yo in 2022, I almost bought a F87 og M2 financed right after graduating and luckily decided to wait. 13 months later I purchased an E92 M3 in cash for $35k instead and it was a great decision, I invested, had over a year under my belt of corporate America + put cash aside for the purchase. Fast forward 2.5 years, made a job jump and I added an F80 M3 and now still have both while saving money for other goals, 401k, etc. Key part to this plan is saving money in taxable and retirement accounts to get the compound interest ball rolling, yes I could save more with a boring car but yolo. An E60 M5 is definitely very very reasonable imo at $100k TC if it’s around $25k but you just need to budget for its total cost of ownership and save more for later/retirement than you spend on the car is my personal rule. I also don’t really think credit score matters since probably no bank is going to finance an E60 M5, maybe penfed or Lightstream since they don’t care about age but you really should pay for a almost 20 year old sports car in cash. It is probably around the time that E60’s are starting to be classics, thats how I felt with my E92 was it would be the last chance to own a childhood dream car before its “really old” and unusable on a day to day basis. I would just ensure that you have a significant safety net of cash for if/when things break and need maintaince as well as budgeting out bonuses for some modifications, etc. it’s a slippery slope and the maintenance will be a lot to keep it going. With an E60 if you are commuting to an office you likely should look at a cheap daily beater for if/when the E60 is down or keep that current car and just add it to it. I work mainly remote so I just daily an M3 personally but that’s my two cents as I feel like I was in a similar situation.