if it feels like the rear end is loose when accelerating, your rear trailing arm bushing are calling it quits. for your tires, either get an alignment first or replace your front control arm bushings and rear trailing arm bushings, get those replaced if you've never replaced them then get an alignment.
i doubt it'd be your shocks and struts.
Current:2013 Candy White VW Golf TDI
Sold:2004 Silver Gray M3
Mods: Dice Unit, EAS Angel Eyes, Painted Reflectors, CSL Diffuser, Smoked Corners, PSS10s, 15mm Front and 10mm Rear Spacers.
Gone:1990 Brilliantrot 325is
Mods: Alpine speakers and HU, Euro Projectors, Magnaflow Muffler, Euro Smoked Tails and GC Coilovers.