car: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/bin/car - from package: ucommon-bin

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/car - from package: ucommon-utils

You may install the required package with command apt-get install {package}

Error in other languages:
car: bevel nie gevind nie
car: comandă negăsită
car: comando não encontrado
car: commande introuvable
car: command not found
car: käsku ei ole
car: không tìm thấy lệnh
car: komanda nerasta
car: Kommando nicht gefunden.
car: kommandot finns inte
car: komut yok
car: nie znaleziono polecenia
car: níor aimsíodh an t-ordú
car: no se encontró la orden
car: no s'ha trobat l'ordre
car: opdracht niet gevonden
car: parancs nem található
car: perintah tidak ditemukan
car: príkaz nenájdený
car: příkaz nenalezen
car: команда не найдена
car: командата не е открита
car: 命令找不到
car: コマンドが見つかりません