Hello,
I'm a proud owner of new g37x and I am very happy with my ride.
My friend also got his new bimmer 328 xdrive recently, which has 4 cylinder turbo making 240 horses and similar torque with g37.

He claims that his 328 can beat my g in 0-60 and quartermiles both easily which i think it's nonsense.

I told him that,
your 328 can't even beat last gen 07-08 vq35hr sedans making 305 hp, there is no way you can outperform g37,

What do you guys think?

 

Not sure about the X Drive but the new RWD 328 is pretty close 0-60. You should have a slight edge but might come down to who has the better tires and reaction time. This is all done on a track too (right )
BTW, welcome to the site