Reviews Britax B-Smart 4 Four-Wheeler Pushchair/Travel System (Venetian Red)With so many on offer these days, it is good to have a name you can trust. The Britax B-Smart 4 Four-Wheeler Pushchair/Travel System (Venetian Red) is certainly that and will be a great acquisition. For this reduced price, the Britax B-Smart 4 Four-Wheeler Pushchair/Travel System (Venetian Red) comes widely respected and is always a regular choice with most people.