Yes, I agree, the 135i is incredibly fast, even in its stock state (which is probably where mine will stay). I love driving it. I happen to have a convertible, which on beautiful days in Georgia is an absolute JOY to drive. Its white with red seats and I've had it for 2 years now. I still LOVE it.
And can I just say that I love how your modified 135i sounds! Also love that you got it up to almost 140 MPH in your video!!!