400hp w210, om606 Turbo or 320cdi?
400hp w210, om606 Turbo or 320cdi?
If the cost is no problem, you don't like high revs that much and you're okay with something between 300-400hp, take the CDI. If you want to be able to rev the engine higher, want to be sure to achieve at least 400hp and have plenty more potential (100hp more), take the 606.
The biggest issues with CDI are the injectors and finding a proper turbo. CDI can't rev like 606, so you'll need a turbo that spools low down, but required air volume and pressure ratios rule out the "normal" VNT turbos these cars have.