there's seems to be no modification to the chasis and aerodynamic but the technical director of B.A.R-Geoff Willis said that they were testing with new technology, a new rear end and new suspension. They were also testing the new Honda engine which will be used in '04 and it is proven to be reliable, according to a statement made by Shuhei Nakamoto, the Engineering director of Honda Racing. They were also testing with Michelin tyres. The car is quick though. I hope B.A.R. can challenge the top 4 teams next year.Cheers