There is not an upgrade currently planned for the ELR, but the 2017 CT6 does have a PHEV drivetrain option.<p>I find the electric drivetrain much more satisfying even with lower 0-60 numbers, as you have all the torque all the time. I do wish GM also worked on the 0-60 numbers.<p>&gt; The combined system is capable of producing total system power of 250 kW (335 hp) and 586 Nm (432 lb-ft) of torque.  [1]<p>Disclosure: I am a GM employee.<p>1. <a href="http:&#x2F;&#x2F;media.cadillac.com&#x2F;media&#x2F;cn&#x2F;en&#x2F;cadillac&#x2F;vehicles&#x2F;ct6_phev&#x2F;2016.html" rel="nofollow">http:&#x2F;&#x2F;media.cadillac.com&#x2F;media&#x2F;cn&#x2F;en&#x2F;cadillac&#x2F;vehicles&#x2F;ct6_...</a>