I have the old card and it is blue. The old card only allows you to accumulate up to $500 earnings per year. At the 7th year, if you haven't redeemed, you lose year 1 earnings so the most you can accumulate is $3500. The good thing is, though, that you can use all $3500 on one car. The new card allows unlimited earnings but GM limits how much you can apply to each specific model. When viewing the GM Card website, the new GM card looks like it is silver.