The low-end model starts at $46,000. The high-end model starts at $61,050.
I only fond a BMW z4 with a towbar in the Netherlands I saw the car and the towbar. The brand of the towbar is Westfalia. The car is for sell on www.autowalinga. nl
"The highest priced BMW Z4 used vehicle is around 40,000 dollars. The average price for a new BMW Z4 is approximately 60,000 dollars. Prices also vary with each version of the car."
The 2005 BMW Z4's engine produces 175 ft-lbs. @ 3500 rpm.
The 2008 BMW Z4's engine produces 185 ft-lbs. @ 2750 rpm.
The 2011 BMW Z4's engine produces 220 ft-lbs. @ 2600 rpm.
The 2014 BMW Z4's engine produces 260 ft-lbs. @ 1250 rpm.
The 2007 BMW Z4's engine produces 185 ft-lbs. @ 2750 rpm.
The 2010 BMW Z4's engine produces 220 ft-lbs. @ 2600 rpm.
The 2003 BMW Z4's engine produces 175 ft-lbs. @ 3500 rpm.
The 2012 BMW Z4's engine produces 260 ft-lbs. @ 1250 rpm.
The 2004 BMW Z4's engine produces 175 ft-lbs. @ 3500 rpm.
The 2006 BMW Z4's engine produces 185 ft-lbs. @ 2750 rpm.