Online achievement hunting for Xbox One [HELP NEEDED]

Hi everyone, I have been replaying watch dogs and its been a lot of fun, today I wanted to earn the online achievements, so far I have unlocked the Hackification and Piggyback achievements. I need help in earning the racing and getting tailed achievement. I would highly appreciate anyone that can help. Thank very much. P.S If needed I'll do the same in return. Thank you.