While I do think something is definitely off with power delivery over 100mph(the 1-150mph times for that car just makes zero sense). Take magazine numbers with a grain of salt.
Look at the viper...most magazines record traps of around 127-128...then take a Huracan, for example, traps are around 132-135 in mags.
Viper vs Huracan
https://www.youtube.com/watch?v=i_m1-2cA44E
Drag times for C7Z/Viper/Hellcat---same day/track
http://nineballgarage.com/2015/01/drag-strip-tested-c7-z06-vs-viper-vs-hellcat-vs-zr1/
Motor Trend had a head to head of a Viper losing to a black series a while back...I think in that vid they trapped 124-5 or some shit with the viper...laughable.
Reason is...it's fucking hard to drive a 600+hp car with a manual trans and consistently get the best out it....on a drag strip or a track. GTR, Huracan, Newer P cars...the trans is doing 50% of the work for you.