Very Close Spartan but here is the Two Factors.
If We are Talking a Stock Sprint 2 and a Slightly Modded TT-01 then here are the Underlying factors


TT-01:Advantages
TT-01 as long as it has the Alloy propshaft and Wheel Bearing kit will offer quicker more direct feel due
to the nature of a shaft Driven car.. it will launch off the line harder then a Sprint 2..
TT-01 parts are relatively Cheap and durable. The TT-01 features covered spur and pinion gears making rock and pebble damage near Zero.. you can Rally Drive a TT-01 on gravel with no issues.
TT01 is Easy to Build, Easy to upgrade and Easy to maintain.
Damned near Indestructable, but will break if treated Badly.. like most cars really
Being a Tub Chassis all the essential parts like Battery and motor are very well protected..


Sprint 2 Advantages
A Stock Sprint 2 will easily out drive a TT-01.. Being Belt Driven it feels smoother to drive and very well balanced car
It is Way more adjustable then the TT-01 meaning that the car can be dialed in for Drift and drift and race more superior to the TT-01.. Its a Chassis in the next category up from the TT-01. Its Lighter and has more Bling parts and Oil filled Shocks Stock. It has Ooodles of Gearing options but Stock will Handle a 10 T motor..
Stock most Come with a 17x2T and an LRP AI ESC. Top Speed Stock Approx 40kph
The Motor mount is alloy Stock.. aids motor cooling...

TT-01 Disadvantages
Its Heavy, A Shaft Drive tends to Vibrate more taking some of the smoothness that the Belt Drives have.
It Does Suffer from a one way Turning Bias due to the way the Electronics and Battery are mounted either side of the shaft.. The Battery weighs more then the Electronics and motor..
It has been known that the rear diff cover can crack if a Head on or Tail on impact happens..
If it is Stock, then the Plastic Bushes and Plastic Prop shaft can snap..
Average Top speed of a Stock TT-01 is around 25 -30kph..
Gearing can also be an issue with a TT-01 as it has a fixed motor mount, meaning only certain gear combinations will mesh.
With the Motor Being in the Tub, Airflow is reduced so a Heat sink is necessary..


Sprint2 Disadvantages
Its Belt Driven.. meaning your Drift surface must be very clean to ensure that rocks debris isn't pickeed up into the enclosed Diff casing which can lead to premature belt wear..
The pinion and spur is side mounted and exposed.. A heavy side impact can cause the spur gear to be damaged..
The Motor is mounted Side ways towards the rear of the car below the rear belt.. Needs a Custom Heatsink to keep the motor cool IF you decide to run a Motor lower then 14x2T as the belt above the motor only clears the motor by about 2mm if that...
The Main Belt from the Front Diff to the motor goes around the upper deck, meaning half the car has to be dissasembled to replace the belt...it is rare for the front belt to snap or wear but can happen.
The Rear belt is always in need of checking.. and you have to pull the WHOLE rear off the car to change the Belt.
a 45min to 1.5 Hour Job. AVERAGE life of a Rear Belt is around 10 hours.. I have gotten over 40 with mine but I drift on a Near spotless surface..
There isnt much room on a Sprint 2 chassis so Large ESC's can become a problem when mounting..
It can be Done but this means you must Set the ESC up prior to fitting as usually the Set button will be mounted in an inaccessable postion once fitted.


I Own Both Cars.. and I love my Sprint 2 as much as I Love my TT01..
I use my Sprint 2 more as it Drifts and races perfectly with the only thing needing to be changed is the Tyres..