anything basic, you want to learn in something without massive steering lock I'd say. If you have mental lock, it will stop you from spinning, which sounds great, except it could mean you can never properly drift anything other than that specific car.
Personally, and I think StevoD has gone for the same approach, I've been learning in a basic car and then uprating things as I need to. Then you've got a car for your capabilities and not a monster that you can't get along with. Out of the box, the Z is a fantastic learner car. By all means, buy this car and drift it, it's gorgeous and goes well, you just might struggle