Also, how strong are the sparco terras? I'm not looking for something crazy strong, but I'd like any rim I get to at least be as strong as stock.
I spoke with them after the event to specifically ask them how the Terras held up.
They told be that they hit a compression rut so hard and fast that they sent a front R1 M-Sport Bilstein coil over body right through the mount/unibody, but the Terras were perfect.
Granted, these were 15x7s with full-on Hoosier reinforced gravel rally tires on them, but still, that sounds pretty tough to me.