The designer of the new cars has built a model and BART wants you to check out the interior and exterior.
There will be 10 preview events all over the Bay Area from April 16 to May 9.
You can walk through the model train car and give BART your feedback.
The first event will be held at Justin Herman Plaza on Wednesday April 16 at 11 a.m.
Manufacturing will begin once the design is finalized.
The new cars are expected to go into service in 2017.