Amazon making its long-awaited leap into the robo taxi race. The company's self-driving Zuk's vehicles hitting the streets in Las Vegas today. Mackenzie Seagalos has more in today's Tech Check.Mac, hey there. So, we are talking about a first of its kind vehicle. No steering wheel, no pedals.You can see it here in this exclusive footage captured by CNBC's digital video team during a ride along. Now, it's a limited launch, but a meaningful one. Zuks needed special regulatory clearance just to carry passengers ...