Is this smart? trading a newer car for an older car?

i'm thinking of trading my 08 Nissan Sentra for an 06 BMW M3 E46.they are both modified (M3 is heavily modified) but the bmw has 2k more miles on the engine than the sentra. should i keep the car i have or trade it? it's a close friend im trading with so i'll still see my sentra if i do trade. here is list of mods if interested.





Sentra-


Injen SP Series Cold Air Intake


Speed Limit Defencer


Super SQV Racing Single Valve


3 1/2 " Body Straight Tube glasspack (exhaust)


enkei LF-10 18" rims


SFR turbo kit


alcohol injector


R1 series carbon fiber hood


pulse style full bodykit





M3 E46-


Eibach lowering kit


EIbach anti-roll kit


Eibach Sway Bar Kit


AEM methanol injection kit


Magnaflow Exhaust System


MSD Ignition Amplifier


Mallory Performance Ignition Kit


CO2 Installation Kit


HKS GT Supercharger Kit


enkei GW8 17"rims


AE072-01 executive front bumper


R-1 executive Rear Bumper


GTR Bonnet with Carbon Vents


VIS Racing Euro Tech Style Side Skirts


vfiber frp fender flares


Carbon Fiber Dive Planes|||I think you need to figure out why anybody would give up the much superior BMW for a lowly Nissan. The Sentra (in any trim) is nothing more than an entry level car. The BMW M3 is one of the best high performance German engineered sport sedan in the world. All the mods on the planet can't make that Nissan half the car the M3 is.





From your perspective it would be a great move. If you can talk someone with an M3 into giving it up for your Sentra you're a lucky man.





There has to be some hidden issues with the M3. No sane person would ever consider that move.|||keep your own better the one you no than the one you dont and you no how and who and when all your mods was done and you can go back if you have a problem i recon you swap thats your freindship gone as it never works out i always go by two rules that is never sell a family member and never sell to a freind as their is always problems if you value your freindship dont swap|||ONLY IF ITS TOYOTA!!!!! ALL OTHER BREAK DOWN!!!! DODGE NISSAN CHEVROLE FORD INFINITI KIA BMW HYUNDAI ALL BREAK DOWN!!!! PLZ BUY TOYOTA ONLY!!! THANKS!!!|||It's all about what you want. Sentra and BMW aren't even in the same class. So, you're not really trading it down, you're trading up even though BMW is older. As a BMW owner, there is no other car that comes close to matching precision and handling that BMW has to offer. In your case, it all comes down to cost, how much are you willing pay to get the BMW.