weiterfahren
to drive on
To continue a journey by vehicle after an interruption or stop.
Nach einer kurzen Kaffeepause am Rastplatz sind wir weitergefahren.
After a short coffee break at the rest stop, we drove on.

to drive on
Loading your saved state.
to drive on
To continue a journey by vehicle after an interruption or stop.
Nach einer kurzen Kaffeepause am Rastplatz sind wir weitergefahren.
After a short coffee break at the rest stop, we drove on.

'Weiterfahren' (to drive on) is a separable verb. In a main clause, the prefix 'weiter' goes at the end, while in a subordinate clause and in the infinitive it remains attached to the verb.
Wir fahren nach der Pause sofort weiter.
We will drive on immediately after the break.
Since 'weiterfahren' (to drive on) describes movement, the perfect tense is always formed with the auxiliary verb 'sein' (to be). So the correct form is 'ich bin weitergefahren' (I drove on / I have driven on).
Obwohl es schon dunkel war, sind wir noch eine Stunde weitergefahren.
Although it was already dark, we drove on for another hour.
The meaning depends on the context. 'Weiterfahren' (to drive on) after a break means to continue the journey. 'Weiterfahren' (to keep driving) at a place means not to stop there, but to drive past it.
Wir haben kurz getankt und sind dann weitergefahren.
We briefly filled up with gas and then drove on.
to hold
'halten' and 'weiterfahren' are clear opposites when talking about vehicles. 'halten' means that a vehicle stops or comes to a halt. 'weiterfahren' means that the journey continues or that someone does not stop at a possible stopping point. When the bus 'hält' (stops), people get on or off. When it 'weiterfährt' (drives on), it keeps moving and does not stop.

Nach einer kurzen Pause fahren wir weiter Richtung München.
After a short break, we drive on toward Munich.
Der Bus hält an der nächsten Haltestelle.
The bus stops at the next stop.