My favorite is the prowler and you didn't say there was a budget limit so how about this ...
TANK™ M2 – Torque Fitness
And the condo association wouldn't complain about the grinding. But you might need a separate parking place to store it.
The tire drag could product a prowler like experience. Get some nylon webbing like climber uses and make a long loop to go through the tire and then carabiner it to the back of the harness. That webbing is easy to find at your local REI, assuming you have a local REI. The strap and harness would easily store in your gym bag and you could load the tire with lose weights, kettle bells, or dumb bells to increase weight as your stamina goes up.