If this was an ideal world (is currently far from it
!!), I'd love to see them operated by XC on the Stansted-Birmingham/Notts-Cardiff routes, as they would surely provide a more comfortable environment than the current 170s, and also enhances capacity by comparison to 2 car services, with the first class area reduced or even abolished? As the 9 seats are very rarely used from what I usually see! with this, capacity would somewhat similar to a 3 car 170, with the option at peak times of coupling 2 together for 6 car formations!