Ohhh, Fit in the trunk is the hard part.. Only Cags and Euro Bikes fit in trunks.. I'm 6'2 and ride a GRC frame that fits me and in my Toyota Camry trunk, I also own a BMS Frame that fits me and the trunk but most cags, the smaller polini's like the GP3, Dreambikes, 2.5's are just too small and I have to bend too much.. You might need a X series (Mid Bike).. I can get one in my trunk but I have to strap it closed.. it stays open about 8 inches.. All bikes can be modded to go quicker and pull your load.. All depends on how handy/mechanically inclined you are..
Good luck choosing one...
Good luck choosing one...