Learn Dutch: Jawel, wij hebben de voorsprong.

Jawel is an emphatic "yes" used specifically to contradict a negative statement or assumption. The speaker is responding to someone who just said or implied that they didn't have the lead. In English, we usually express this by stressing the verb: "Yes, we do have the lead."

Is jawel related to the van wel structure from this lesson?

Yes, they both rely on wel as an affirmative marker that pushes back against a negative. While ik denk van wel (I think so) replaces a whole positive clause to contrast with a negative possibility, jawel replaces a simple ja to give that same contrasting, affirmative emphasis.

Why use the full pronoun wij instead of the unstressed we?

Using the stressed pronoun wij puts focus on who has the lead. Combined with the emphatic jawel, the speaker is strongly contrasting their own group with an opponent: "No, we are the ones who have the lead!"

What is the literal translation of voorsprong?

It literally means a "forward jump" or "ahead jump" (voor + sprong). In Dutch, having a voorsprong means having a head start, an advantage, or being in the lead during a race, match, or competition.