我想問有關wrx 同wrx sti 有乜野分別呢 ?

MPREZA WRX SEDAN
Starting at $24,995* (USD)

With a 224 horsepower intercooled, turbocharged SUBARU BOXER engine and quality features such as a 120-watt 6-speaker premium audio system, sport-design instrumentation, and performance-design front seats, the Impreza WRX Sedan is as focused on comfort as it is on performance.

Standard Features:

* 224-hp 2.5-liter DOHC intercooled, turbocharged SUBARU BOXER engine
* 226 lb-ft of torque at 3,600 rpm
* Symmetrical All-Wheel Drive
* MPG: (manual) 20 city / 27 highway^
(automatic) 21 city / 26 highway^
* SIRIUS™ satellite radio capability
* Projector-beam halogen fog lights
* Sport-design instrumentation with silver gauge trim rings and center-mounted tachometer
* Leather-wrapped 3-spoke steering wheel with manually adjustable tilt column
* Performance-design front seats with fixed integrated head restraints
* 120-watt 6-speaker premium audio system with 6-disc in-dash CD changer and MP3/WMA capability
* Auxiliary audio jack

MPREZA WRX STI
Starting at $33,495* (USD)

Built upon a rally car heritage, the Impreza WRX STI is for the racecar driver at heart. It will make you feel like you’re tearing up the track, although you’re only driving down the street.

Standard Features:

* 293-hp 2.5-liter DOHC intercooled, turbocharged SUBARU BOXER engine
* 290 lb-ft of torque at 4,400 rpm
* Symmetrical All-Wheel Drive
* MPG: (manual) 19 city / 25 highway^
* SIRIUS™ satellite radio capability
* High Intensity Discharge (HID) low beam and multireflector halogen high-beam headlights
* STI-design instrumentation with aluminum gauge trim rings, center-mounted tachometer, gauge needles full-sweep on start-up and adjustable tachometer red-line warning with audible indicator
* STI high-performance-tuned exhaust system with single stainless-steel outlet
* Leather-wrapped 3-spoke STI-design steering wheel with contrasting red stitching
* STI-design front seats with fixed integrated head restraints and embroidered STI logos
* Alcantara ® upholstery
* 120-watt 6-speaker premium audio system with 6-disc in-dash CD changer and MP3/WMA capability
* Auxiliary audio jack

抄抄抄!而且跟本冇提過性能同維修, 價錢仲係非香港市場! 有其它答案好過呢個抄嘅文章

3-6代 280PS 2000CC
3-6代 WRX , STI 只係外觀 , 避震 , 死氣喉 , "樓"力 有少少分別.

7,8代 WRX 日版 250PS 2000CC 5速
7,8代 STI 日版 280PS 2000CC 6速

9代 WRX 美版230PS 2500CC 5速
9代 STI 美版280PS 2500CC 6速

7-9 代 WRX 只係用SUBARU 頭4尾2 BRAKE KIT , 5速波箱 , NORMAL INTERCOOLER , 冇STI字BUCKET SEAT , 冇STI 避震 , 呔既分別

而7-9 代 STI 用BREMBO頭4尾2 BRAKE KIT , 6速波箱 , STI INTERCOOLER , STI BUCKET SEAT 等等...

性能方面 , STI 比WRX 多30/50PS , "樓"力大D 點刀會係STI好小小.
但用買STI既價錢 , 買架WRX改到同STI平排刀吾洗STI個價.
分別只係5速同6速 , 同一D ENGINE 裏面改動大既野.

特別需知 就只係留意ENGINE 精5精神 , 有冇漏油 , 轉波順5順等等

以下蘋果個 url 應該可以答到你o既問題。
不過順帶提提就係 WRX 應該今年轉全新款 (2008年 model) 你想睇樣就要去美國個 yahoo 到 check，年底會到。
現貨 (如果仲有貨的話)，o既 WRX sedan 都係 06 年車， 不過 wagon 就係 07 年車。

WRX 係普通版，WRX STi 係頂級版，加左包圍，性能勁過WRX，不過貴d。

Subaru Impreza WRX 2.5 : 2457cc TURBO，230PS，5MT，0-100km/h 5.98s，HK$224,887。

Subaru Impreza WRX STi : 2457cc TURBO，280PS，6MT，0-100km/h 5.27s，HK$325,777。

維修無分別，隨價錢外，無乜野特別需知。