I'm pre-T and I already enjoy tons of sports, working out, pounding pads at Taekwon-do, etc. I'm not a massive car person but then I don't own a car. I do, however, own a bicycle and I work on that almost every week to tune it up and have it running perfect so maybe that's like my car obsession lol.
I did notice that when I present as male I take more time on how I look. I was the type of person who could literally set an alarm clock for 10 mins before I had to go out. Now that I present as male, it's at least 30 mins, preferably more! I shower every morning now (used to just be night before or every 2nd day), I use skin care product that I never really bothered with before, I do my hair which can sometimes take up to 10 mins to get the spiky or faux hawk look just right, and I eat a proper breakfast now because my work out routine being effective relies on having a good diet. When I was female, I'd get up, put on clothes, throw a cap on and would often skip breakfast. 10 mins work at best!
I pretty much pass now, although I have my insecurities in certain features that I hope T will help with (e.g. I still carry a fair bit on my hips right now and I want more male distributed fat). I recently did a bike race thing and after much deliberation shaved my legs. All my cis guy mates were doing it and I eventually agreed. The reasoning wasn't for any rubbish aerodynamics reasons, but for saving a world of hurt if we did happen to fall off our bikes and get road rash (2 of my mates did). If you've ever had substantial road rash where you have a lot of hair, it is excruciatingly painful compared to anywhere hairless. But it's been insanely hot lately and I decided I had to wear shorts today because of all the running around I had to do and I figured today would be the day I'd be misgendered because I have smoothish legs. However I wasn't misgendered once, and I encountered a
lot of people today and got nothing but "sir". I think the more we start to be accepted or pass as male the more we start to change. Maybe testosterone will have an affect, I obviously don't know, but I'm thinking there's more of a placebo affect than anything else where you find yourself more open to manly things or things like taking pride in your appearance as a man where perhaps you never bothered before (my example). The more I'm accepted as male the more I've allowed myself to be open to the more manly things I've always liked but perhaps not been so open in that interest. The interest was always there but like the UFC for example, girls often turn their nose up at it, but I was curious at first and then damn, I love it! I can't get enough of it! And now that I pass as male, I wear MMA/UFC/Tapout tees and/or shorts. I have a Bad Boy cap too which is AWESOME!!! I even do a GSP workout and I get excited because it's GSP! He's a god amongst UFC fans! Lol.
I'm only putting my input here because I honestly don't know how I could get more stereotypically male when I start T. Well, I guess maybe then I'd get more interested in cars! But I don't know, I can get by without one and I'm Scottish, which means I'm cheap and that could end up winning out!