hmm I learnt to drive on my mum's 5th gen Camry V6 and drove it for half a year on my red P's before I got my own car. I've always found it to be like a rock, acceleration was really slow, and you had to use some force on the gas pedal for it to move with any urgency, I don't see how you can hoon around in it lol, despite being V6 (unless extensive mods were made). My current Aurion SX6 on the other hand goes much faster from a standstill haha, the gas pedal is so much softer compared to the gen 5 Camry and wants to be floored. Even though the Aurion has a lot of power at hand, I try to drive as responsibly as possible as I'm still on my red P's and my work necessitates me having my own transport, as well as setting a good example for younger siblings soon to get their licence. I do understand the concern to try and minimise the chances for your brother to hoon around, you would know your brother better than your parents lol and I think you have nothing to worry about with the V6 Camry, its really too big/heavy and not powerful enough to do considerable damage.