I'm all for new and advancing technology, including DI engines. My IS350 has DI and it is a very smooth and responsive engine. I have only once small gripe about DI. When at idle, it makes a ticking sound due to the high pressure gas line things (sorry, I don't know exactly what those are called).
If there is a an true advantage to DI, then it would be a good thing for Infiniti / Nissan to embrace.
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