If you like it and can afford 2-3K monthly payment, please get it.
Brand new BMW comes with full service and warranty option, not much to worry.
Unless you are unlucky, you get one that comes with issue. eg. charging. This applies to all car brands.
Also, malaysia household doesnt push enough amp to optimize charging on Phev, this affect the battery life indirectly. Debatable issue.

For cars over the warranty period, bmw has lots of aftermarket OEM parts to keep the cost low. Unlike a Volvo with little or no after market OEM, maintenance for bmw is maybe slightly more then a non continental.
there are preventive maintenance cost when your car reaches 80k 100k, like absorbers, hoses, oil pan.. each visit for those jobs could average 3k.

again, you feel the pain if you are stress with financing/affording something beyond your capability.
May it be BMW or Merc, or Mazda, test it and if you like it GET IT.
At the rate of car prices rising, last time entry level City is 60K, now 90K, believe in YOLO, you wont regret.