Should I install a touch screen stero/ navigation system in my car?

I've been thinking about doing it for awhile now. I have a 2012 honda accord and i don't like the radio system. I think my car would look way better with it. And the Bluetooth would work really well. Any opinions? My reviews say don't do it but i think it would look great

2008 Lexus IS350 or 2008 BMW 335i?

So I currently have a 04 Accord Coupe V6 that I just finish paying off, it has 105k miles on it and my title is coming in the mail in a few weeks. So for months I've been comparing these two models. I've driven the IS350 but never really drove the 335i. I want a four door car, want something reliable, want something that I can have fun with when I'm by myself, I want something that looks somewhat sporty as well. I want something quick, at least a v6 when I need that extra power or when I want to play around on the track. I'm basically looking for a family car when necessary, and a sports car when I want to have fun. I do want to get into modding it in the future. Here are the facts about these cars that I know.

Lexus:

1. Reliable
2. Has a better interior
3. Looks more modern
4. More room in the back seat
5. Cost more used (Holds value better)
6. Cheaper to maintain
7. Naturally aspirated (don't have to worry about replacing turbos)
8. Better Navigation sytem

BMW:

1. Comes in AWD (something to think about for all types of weather)
2. Faster
3. Can be tuned to produce more power
4. More expensive to maintain
5. Better driver experience (from what I see and hear)

Added (1). I just can't decide. I've seen the 335i's for around 11-13k with around 80k miles on it, I've seen the Lexus for around 12-15k with 80k miles on it. I just can't decide what to get. I want the BMW because it is more of a performance car, and I want the IS350 because I'm scared of the Maintenance of the BMW lol

I will be using the money I get from my Honda as a down payment on one of these cars.

2002 Honda Accord P1457 EVAP faulty bypass solenoid valve?

I have a 2002 Honda Accord with 115k miles which recently gave a ECL. The Honda dealer identified this a P1457 and says that the EVAP bypass solenoid valve needs to be replaced

1) is this referring to this valve?
http://www.amazon.com/...004IYY8SY/

2) The dealer says that once this valve is replaced, they will have to check if ECM/PCM needs to be replaced. They said it is a 50/50 chance that ECM will need to be replaced (Another $1100)

3) I don't want to spend $500 to replace the solenoid valve and then realize that ECM also needs to be replaced. So, if I do nothing, what is the worse case scenario (ECL is ON; PCM gets "fried")?

4) Where is the bypass solenoid valve located under the car (front/back, left/right)?

How hard is it to replace a head gasket on my own?

I have a 2005 Honda Accord EX 4 cylinder and have been getting bad misfires & used to have white smoke coming out the tail pipe but i put KW sealer in the radiator and it was a temporary fix, I've driven about 500 miles since but now I'm having really bad misfires again.

I've already replaced the spark plugs but I'm still having the issue. I believe it's a bad head gasket & i can order one but don't have 1,000 dollars on hand to pay a mechanic to replace it so i want to do it on my own but have no experience, but I'm extremely willing to learn.

Can anyone give me any tips or advice?

Can I register a car from another state in New Hampshire?

Am I able to finance a car (2008 Honda Accord LXP) in my state (Rhode Island), get the temporary plates, and then drive up to New Hampshire to get my car registered and the plates?
P.S I don't have any car registered at all right now, no plates need to be transferred or renewed.

Honda accord unplugged hose?

I have a 98 Honda accord and my boyfriend texted me saying he unplugged a hose and that if I use my car its gonna be hot. Does anyone know what hose he could be talking about? I need to do some running around today and there's no telling when he will be home. Please

Can i get a electric car as a taxi?

Can i get a small electric car 1/2 the size of a Honda accord (yes its closed in ) and put a taxi sign on it when i'm fourteen it says you don't need a license. I don't have a a taxi driver certificate it only goes 20-32 mph