Tesla is starting a new referral program that will encourage people to refer new car buyers to the brand with a chance to get a free Model X.

Elon Musk, CEO of Tesla Motors, explained the new discount strategy yesterday during an earnings call yesterday afternoon. Simply put, current Model S owners can refer new car buyers, who will get a $1,000 discount on the purchase of their new Tesla. Those who referred their friends will also get a $1,000 credit towards the purchase of a new Tesla.

But Musk is channelling his inner Billy Mays and is offering even more with this program. Owners who refer five new buyers will earn a tour of the Gigafactory while if they refer 10 new customers, they get a $20,000 discount on the new Founder’s Series Model X. Finally, helping to kick things into action, if you’re the first in your region to refer 10 new Tesla customers, a fully-loaded Model X is all yours at no charge.

The program runs through October 31st of this year, and is only available for buyers of new Teslas although Musk suggested it could extend to used car sales if successful.

This article originally appeared at AutoGuide.com