Towed home my new-to-me '17 245RLSW from Southern Calif to my home in Central Calif (300 miles) with no problem. It's the most I'd want to tow with it, but at 55mph and my setup, it never geared down more than one gear pulling up the Grapevine, never strained to maintain 55mph.
2015 Tacoma Double Cab PreRunner
LARGE aux trans cooler
Scan gauge monitoring (trans never broke 180deg, engine never above 205deg)
Center Line WDH
ProEFX power tow mirrors
It wouldn't be my choice for full time or cross-country travel, but for the 5-6 times a year I'll go 200-300 miles in a trip, it works great and still leaves me with my daily driver. I WOULD NOT recommend this combo w/out the provisions I've outfitted the truck with, or their equivalent.