The registry (though not complete) suggests that 6X068572 is the 24th to last known srt made. There are known knowns. These are things we know that we know. There are known unknowns. That is to say, there are things that we know we don't know. But there are also unknown unknowns. There are things we don't know we don't know. Now live on Autotrader: Chrysler Crossfire 3.2 V6 SRT-6 2dr Auto