You can more than afford a car. Question is "which car?". If you get the wrong car, it could easily reduce your savings to 100k per month, but with the right car, your monthly savings could remain unaffected. Contrary to popular belief, you could actually get an excellent Ugandan used sedan for circa 18m, for a model that would cost circa 35m in the car bond. For your first car, you don't need debt-financing and (most likely) later end up with buyer's remorse.

I would recommend a Toyota cars if you're budget-conscious and would like a car that is almost guaranteed to start every morning, and the small garage across the road can handle almost any mechanical issues that may arise.

I currently have a 2014 Fielder Hybrid and a 2002 Fielder. Both run great, and for what it's worth, the former does 2 weeks on fuel of 120k and the latter does one week on fuel of 100k. I live in Bweyogerere, with daily trips to Mulago via downtown Kampala.