Car Demon has a wide variety of PHP constants that can be used to modify functionality.
Over time many of these constants will be turned into settings that can be adjusted on the settings page. In the meantime you can define these in your wp-config.php file right above where it says:
/* That's all, stop editing! Happy blogging. */
CD_RESTRICT_SPECS_ALL_MSS if defined the specs message will only display one time per section.
You must also define the CD_RESTRICT_SPECS_MSG constant for this to function.
To do this you would add the following to your wp-config.php file:
define( 'CD_RESTRICT_SPECS_ALL_MSS', true );