The Jeep Wrangler's two-door body style hasn't had a significant *lengthening* in its production history in the way that, say, a car might get stretched between generations to add rear-seat legroom. The wheelbase (the distance between the front and rear axles) has remained relatively consistent across generations for the two-door models. While there might be slight differences in overall length due to bumper designs or other minor styling changes between model years, these aren't substantial increases.
Any perceived increase in length would likely be due to comparing it to a much older Wrangler model, or mistaking it for the four-door Wrangler Unlimited which is considerably longer.
