Not a trailer but the Ford Transit Connect qualifies as small and light. I bring my bike to track days with one, and also bring a sleeping pad, heater, coffee maker, lamp and cooler. Works great.
2012 WR250R, 2009 TW200, 2008 Tiger 1050 ABS, 2008 CRF100F
“The problem in defense is how far you can go without destroying from within what you are trying to defend from without.” ― Dwight D. Eisenhower