Would it be odd?
 

With 4cm widened front with flare and 11cm rear with flared fenders, would it be odd looking? Would handling of the super be affected?

No, not as long as the wheels filled out the wells.

my car has 4cm wider than stock fenders on the front and 14cm (if I remember correctly) widened and flared rear fenders. You can find pics in my topic. I think it looks pretty good, eaventho I would prefer the rear fenders without flares.
Why would the handling be affected by the fenders?

Sorry, its not the fenders but much wider rear track width.

As long as the alignment is good (front and rear) you should be fine.

Thanks, will take pics when done. Cheers.