You won't be able to push the 370 in the same fashion as the 8, and yes, you will have to be aware of surrounding conditions, there's a LOT more power going through the rears. That said there will be times where it will want to be pushed, you'll be busier, not with gear changes like in the 8, but with thinking,"Fook me, I'd better get ready for this bend".
Don't listen to Ekona, he's jealous of the 370 , and hasn't driven one long enough, if at all to give an unbiased opinion, he is good with most marque's, just not the 370 and depreciation has just about bottomed out on a 3-4 year old model, then it'll be no different to the 350, the 8 was/is awful in that respect, by far the poorest in this range of cars
Honestly buddy, after about the 5-6 seconds it takes you to get up to Mway speed, you'll be left wondering what the 8 was all about. Also, don't forget, that with the GT spec you have the rev match system on the downchanges, has left me with minimal heel/toe ability now, whereas I was forever doing it in the 8.
Oh and don't tell them on the RX8OC that you're buying a Datsun, 'cause, they won't believe that anything can better an 8, far less a Datsun