Forget abt saving la, autocar states;
"The 3.0-litre straight six (right) is said to produce around 330bhp – up 72bhp on the new 330i and just 13bhp shy of today’s 3.2-litre M3. The new powerplant takes a leaf out of BMW’s latest diesel engine development by employing two turbochargers.
The new BMW won’t be the only model to carry the 335 name. Also under development is a new 3-series model fitted with the same twin turbocharged 3.0-litre in-line six-cylinder diesel that’s used in the 535d."
ie, the car ain't coming to spore at all.