Classically Cool Fixer-upper (Warning)

[Nindigo]

After fixing it up, if your Sim parks it at a public venue, other Sims will interact with and/or steal it.

Please keep it parked at home, folks

I already lost one and was about to lose another, when I spotted the perpetrators. I clicked on the car and via NRaas's MC, I sent it to my household inventory. The offending Sims remained sitting in the air and continued to interact. Muah!

[Trip]

I didn't know that about the car on public lots but HOO BOY I had to keep the garage locked because party guests would try and fix it. I think it's the only time I ever saw autonomous woohoo between a household member and his non-playable girlfriend.

[Nindigo]

Without the use of mods, I don't see autonomous woohoo in any other situations either. But yes, indeed keep the car in a locked up garage - its fun factor is probably 10