Originally Posted by themyst
If you switch between map versions, it's like 45 seconds for a switch. If you're switching between different versions, it's about 10 minutes. Not sure if that's what you're looking for but it's the closest we can get.
The map switching on the cobb GTR is much better (instantaneous) and can hold up to 9 maps! Don't see why this couldn't be implemented on our cars...