I've said this a lot of times, but let me reiterate it:
Let's try to level up our Bobs and set up remote races. That way, we'll be able to get cash and exp even when we're not playing GT5. Not to mention iirc you can still play A and B-spec while your shared drivers are in an ongoing remote race. Then we can prolly attempt 24-hour endurance races for them.
If a 4-hour endurance race can gauge up your exp bar by half when you're level 30 onwards, then 24 hours of racing = profit for exp and money!
Let's try to level up our Bobs and set up remote races. That way, we'll be able to get cash and exp even when we're not playing GT5. Not to mention iirc you can still play A and B-spec while your shared drivers are in an ongoing remote race. Then we can prolly attempt 24-hour endurance races for them.
If a 4-hour endurance race can gauge up your exp bar by half when you're level 30 onwards, then 24 hours of racing = profit for exp and money!