Do not allow username/password login for ssh
This is disabled by default for the root user.
$ man sshd_config
...
PermitRootLogin
Specifies whether root can log in using ssh(1). The argument must be yes, prohibit-password,
forced-commands-only, or no. The default is prohibit-password.
...
I think cars peaked ca. 2010. Anything added after that are annoyances or things being taken away.
If I could get a brand new facelift E90, that would probably be my next car.