335d Touring OR 435d GranCoupe

[nsclem]

Right all - help needed.

I've been driving a 320d Touring M Sport for last 2 yrs. It's been excellent and a great workhorse. Auto, full nav, white, 19" M Star Spoke alloys - all looks awesome.
However, always felt it needed a bit more grunt.

Now is the time for a change - I met with my local dealer at Cheltenham who have always been super helpful.
I've got 2 options that I'm now looking at that will both satisfy the urge for more BHPs:

Option 1: 435d Gran Coupe xDrive M Sport.
Option 2: 335d xDrive M Sport

Baring in mind I've just had a touring for last 2.5yrs, and know how good it it to have the space, I'm not averse to trying something else.
The 4-series gran-coupe has a hatchback style boot so still actually has LOADS of space.

Both have similar engine

My priorities are (not in order):
- Space in back (for dog and other sh*t)
- Tourques
- Horsepowers
- Gadgets etc

OK, anyone have experience of both/either and what are your views?

Thanks in advance for the help!

[nsclem]

Thanks all for the input.

Some useful insight which will prove very useful.
I've organised 2 days with the 435d in a weeks time to it'll be good to compare the points raised against my current 'touring'.

Both have really good finance deals, so it'll be a tough call no doubt...