I'm posting this so everyone can check there vehicle. Numbers as listed in the GCR must be the size listed below or bigger, and contrasting. At our meeting last night this was an issue on a few cars. Everyone please check yourself, or have a friend check
17.5.2. Size of Numbers and Class Letters
Numbers shall be at least eight (8) inches high, with a 1.5 inch stroke on
a contrasting background (rear winged Formula cars shall have as large
a number as possible on their rear wing side plates). Metallic (reflective)
numbers and class letters are prohibited. The distance between two (2)
numbers shall be at least as wide as the stroke of the numbers. Class
letters shall be at least four (4) inches high, with a half (1/2) inch stroke
on a contrasting background.