a) yes. Although close enough I can look at it if I need to. It's been quite useful for checking speeds, particularly when in temporary limits as the caterham speedo is, well, useless. (it's not marked in KPH, bounces around to within about 5mph and /under/reads by about 10mph. In the UK I've calibrated GPS speed against gear/rpm, but I'm only just getting there with the kph equivalents).
b) Not technically possible within the confines of the caterham cabin if it stays in view at all
The windscreen is small enough that any closer and it would take an annoying proportion of it, and also the cable would be liable to interfere with other controls.
And no, it's not portugal.