As an interesting comparison (at least to me), through March, Chevrolet has sold 44,674 of the C7 Corvettes in the US and Canada since its introduction last year and 8,517 this calendar year, almost as many as the total global sales of the FR-S since introduction.
Overall, according to
this chart, the FR-S is #91 in sales in the US for this year, with decrease of 28.6% over 2014.
The BRZ is #111 with a decrease of 43.9% over last year's sales.
And since they are mentioned on this forum all the time the new Mustang (#20) has boosted sales by 52% but that will fall off, and does appear to be hurting #32 Camaro sales, which are down 11% for the year.