About the TRF415
The race-spec chassis used by Tamiya Racing Factory driver Mark Rheinhard to multiple event wins around the world is now available to the masses. Now, R/C fans worldwide can get a taste of the TRF415MSX Mark Rheinhard Edition’s awesome performance at a more affordable price. Utilizing more commonly available parts for increased practicality, this chassis still remains faithful to the features of its more potent sibling and is a perfect addition to the weekend racer’s arsenal.

About the Model
High-quality assembly kit chassis based on the TRF415MSX Mark Rheinhard Edition.
Equipped with Front One-Way and Center One-Way Units as standard.
Parts for the air scoop to allow for more efficient cooling are included.
A differently shaped upper deck, a lower deck with a different thickness, and steel screws are some of the features that help reduce costs while maintaining race performance.
Body, tires, R/C system, motor, and battery are available separately.

Images found in the web, original source unknown, if anyone knows it, please feel free to comment.

The high-end RC Buggy that was announced during the hobby show in May and had been highly anticipated ever since is finally here. Using the concept of the TA05 as the base, A front/midship motor drives a two-belt 4WD system, with the frame featuring 2.5mm carbon fiber upper and lower decks. The 4-wheel double wishbone suspension allows for a wide range of settings, and coupled with the aeration type oil dampers this bad boy is ready to take on the world. A prototype TRF501X buggy won 2nd & 4th place at the JMRCA All-Japan 1/10 R/C Off-road Championships & Pre-World Championships held from September 8th to 10th. With fantastic results like these, the TRF501X is well on its way to the goal of winning the IFMAR Off-road World Championship to be held in Japan next year!

• Both front and rear ball differentials come equipped with slipper clutches for maximum traction
• Will motor located towards the front, the weight balance combined with aerodynamics of the body and rear wing are perfect for attacking big aerial jumps
• Chassis is designed for use with saddle pack-type batteries
• Comes with aeration oil dampers.
• Belt guide roller reduces belt jumping, improving running efficiency.
• Includes Tamiya wheels, transparent body, wing and TRF markings.
• Motor, ESC, tires are not included. These items available separately required to run the 501X.

More infos and pictures here

Report from Dazmeister who was there (many thanks for allowing us to publish them here):
“When I went on the Tamiya factory tour on Monday I saw the development guys working on a lexan Countach but was not allowed to take photos. Another car I saw was a Wild Willy style Tamtech gear with battery in the rear with a poorly fitting Jeep Wrangler shell, I think this was a development mule for a GB01 Wild Willy. Sometimes these things do not make it into production but this had perfect scaled down Willy/Blazer tyres so it must be a very strong possibility.
…
The Countach body I saw was the same dimensions as the ABS original so will be a 1/12th scale on the same chassis as the Porsche 934. When comparing the original 934 to the new Tamtech 934 by eye they look exactly the same dimensions.
…
When I went to the Tamiya HQ on Monday I saw a Tamtech Gear with scaled down original Willy/Blazer tyres in the development office. The chassis was GB01 with the battery pack at the pack like a Willy 2 but topped with a poorly fitting Jeep Wrangler shell. The wheels looked like scaled down Willy 1 wheels too so this must be a future 2007 release as they wouldnt make the tooling for nothing.”

Following the announcement of the Porsche Turbo RSR Type 934 as Limited Edition R/C and Collector�s Club releases, Tamiya now presents this car as an R/C assembly kit in the TamTech- Gear series on a brand new chassis. This newest vehicle is in the same scale and coloring scheme as the original R/C car from 30 years ago and marks a departure from the buggy and truck styles of previous TamTech-Gear releases.

• Compact-sized R/C assembly kit of the Porsche Turbo RSR Type 934.
• The GT-01 is a new lightweight chassis with low center of gravity, efficient type 370 motor, and rear wheel drive for optimum racing performance.
• Four wheel independent double wishbone suspension features special horizontally-mounted front dampers.
• Transmission features ball differential/slipper clutch, universal shaft with full ball bearings for optimum efficiency.
• Durable polycarbonate body attaches to chassis using reverse body mount to maintain clean body lines.
• Includes driver figure and two types of front bumpers.
• Classic Kremer racing livery can be depicted using PS-54 Cobalt Green (sold separately).
• ESC, receiver, servo, transmitter, battery and charger are also available separately.
• Full range of option parts and spare parts available for customization.

Source: Tamiya Inc.

Released with changes as the re-released Frog. Probably as with the rerelease body set there will be no metal core in the roll bar. So it seems the re-release wave is not over yet!