Suggested

Team orders

How about making team orders or setting your team mate behide you to slow and hold the place where he is that will allow you to pull away

Yeah team orders can make huge difference in game. I agree with you. More fun. 

is this not achievable by push levels?  Also quicker cars just overtake anyone significantly slower., so really not sure what this would achieve.

What Ben said... ☝️
It not as bad as another game I tried to play (now uninstalled!) where you split the strategy and guaranteed the other teammate ruins it because they hold each other up. Here with the push levels and maybe a little boot of KERS, problem solved!

I was able to do this through the push bar 

I have been able for I do this with push levels to keep the car I wanted in front but definitely do not think it would hold any one up.

You can do this with push levels