Durability, performance, sizes, materials, construction, technology, price, graphics, purpose
"Pretty sure your logic is airtight, just like Max Hill's jeans" - .Tom.
"The gypsies acted as lookouts, listening closely for any strange noises with their well-developed ears, which had originally evolved to spot and avoid anything slightly mainstream." - Mike-O
"plus they're turbocharged, so they'll haul dick" - Chubz.
S.I.P Sarah, CR, Shane