I recently was sent a Blu Track Designer Series Beta. The beta test toy racetrack set includes a 15 foot Continuous coil of flexible 2 lane BluTrack Designer Series race track featuring Performance Channel, 2 BluTrack Racer Brand Vehicles, 8 Flexible BluTrack Performance Inserts, 2 long rigid BluTrack Performance Inserts, 4 short rigid BluTrack Performance Inserts, and adaptable hanger system allowing quick easy setup almost anywhere. The new Performance Channel and Performance Inserts allow you to vary the rigidity of BluTrack at the points of your track design where you need it. This increases the possibilities by another parameter not available in any other track system. Make bigger loops, wider barrel rolls, and so much more. You will be amazed at what can be done with BluTrack Designer Series. I also got the Stunt Ramps that separately or together to make large loops.
My Opinion: This one is different than the other BluTrack I tested and as far as the thickness of the track and the performance inserts and the speed and accuracy of the cars staying on the track. So definitely an improvement from the other one I got.
To see more visit http://www.blutrack.com/products/designer-series-beta
Disclaimer: I was in no way compensated for this review and this is solely my own opinion which may differ from yours.