Challenges are present in Saints Row the Third and can be found in Saintsbook.
Challenges[]
Get 50 Grenade kills
Get 25 nutshots
Kill 30 Brutes
Get 500 headshots
Destroy 300 cars
Destroy 60 helicopters
Destroy 25 boats
Destroy 25 Tanks
Get 250 carjack on vehicles
Kill 200 Mascots
Explore every hood
Find 50 shortcuts
Take 50 hostages
Hold up 15 stores
Streak for 600 seconds
Perform big air distance for 1524 metres
Taunt 50 gang members
Vehicle surf for 600 seconds
Windshield cannon for 304.9 metres
Run Over 500 Civilians
Oncoming lane distance for 30480 metres
Wheelie a motocycle distance for 3048 metres
Powerslide for 300 seconds
Kill 50 Morningstar Specialists
Kill 50 Luchadore Specialists
Kill 50 Decker Specialists
Kill 25 STAG COmmandos
Perform 500 near misses
Bail out distance for 2000 metres
Spend money for vehicle modding 20000 times
Take 150 human shields
Drive 762 metres on 2 wheels
Perform stoppie distances for 305 metres
Get 500 multi kills
Perform Parachute landings on the target 15 times
Get 25 melee kills
Compliment 50 people
Drive for 762000 metres
Defeat 32 gang operations
Complete 25 survives
Destroy 50 smart cars