Because the ARP4 was marketed as a fast and comfortable tourer, there are many owners who, not unaturally, expected it to also have some torque, which it hasn't.
My opinion, for what it's worth, is that MMC specified the wrong engine, it should either have been the 3.7 V6 or a 2.5 Duratec, whereas, what they have installed is, effectively, a full race engine that only fully comes alive beyond 5000 revs. Sure it is drivable below that, but there is no pull, the driver really has to change down 2 gears to get into the power band. Not everyones cup of tea, as we are finding out.
It is also a bit L O U D, easily overcome with a longer straight through silencer, but enough to put off some new owner [s].
