Prepare grill surface to med hi heat. Grill grates or surface.
Brush corn with olive oil and grill 2 mins per side or until nice and charred.
Once done remove kernels from cob using a sharp knife in a big bowl. Keep used cobs of corn after removing kernels.
In a separate bowl whisk sugar into vinegar to dissolve.
Add remaining ingredients to bowl with kernels.
Combine vinegar mixture to other ingredients.
Using the back of a knife scrape the milk from the leftover cobs in the bowl with rest of ingredients.
Toss all ingredients together.
Can be served room temp or chilled.