A new version of Simutrans-Experimental is available today: Simutrans 102.3 Experimental 7.3. This version is an interim release pending the next main release, Simutrans-Experimental 8.0, which will fix the automatic convoy replacer feature (right now disabled), enable depots that can only build certain types of vehicles (e.g., steam, diesel, sail, etc.), and improve compatibility with saved games.
Any feedback related with the new physics model (thanks to Bernd Gabriel) or the new balancing changes are very much appreciated, as well as bug reports, information as to how well-balanced that the game is, any difference in approach/strategy needed for Simutrans-Experimental as over Simutrans-Standard or any other useful feedback.
You can dowload the new release at Simutrans International Forum.