Mountain Bike Gt Outpost

Am planning to buy a GT Outpost ’07 bike to go to work. My job is only 4 miles away from my house.?
I have a old ten speed bike and I fit every bump on the road and I can’t even take it to mountain. Looking at GT website GT Outpost seem like a good bike for dirt road and city roads. My question is a GT a really good purchase or should I look into buying a Trek bike? And if so want kind of Trek bike? nothing to expensive.
get a Giant Boulder and a suspension seatpost to go with it. if you still have money left over, get Schwalbe Big Apple tires, they can actually do a better job at absorbing bumps than suspension forks AND they’re immune to glass shards and they’re heavy but fast
GT Outpost 2008 Problems

