Board Thread:Game Discussion/@comment-32841549-20170812202111/@comment-31439505-20170814150218

There would not be on in the Zenith Series because it is the first car in the series. It will unlock when the series unlocks.

However, there is one in the 12 Cyl Slam series. If you start out in the series in Tier 1 using the McLaren and work your way in order through the series, you will be eventually be offered the discount on both the 16.4 and the Sport Vitesse.