Before the latest update, if you wanted to see the front camera, you would have to put the car in reverse, zoom in with the "+" button, switch to "D", then click the front camera button again, but it would IMMEdiately switch back after 1 second.
Now after the update if you do the same procedure the front camera stays on after driving above 7mph. That is, put the car in R, hit zoom "+", then switch back to D, then hit the front camera, it will stay on and not immediately switch back.