The 2010 Renault Megane GT price across the whole line-up that includes the Hatch, Coupe, CC and Sport Tourer versions has been announced.
Elements that are only specific to the 2010 Renault Megane GT models include a sportier chassis, new front and rear spoilers, unique 18 inch wheels, sport seats with GT upholstery, a new steering wheel, aluminium pedals  and more.
The 2010 Renault Megane GT models are available with the TCe 180 petrol engine or the dCi 160 Diesel unit and a series of optional features can also be ordered.
The 2010 Renault Megane GT price starts at 21,910 GBP for the hatch variant and goes up to 23,975 GBP for the Sports Tourer body style. 
Renault press release :
Developed by Renaultsport, the GT range adds a further dash of
excitement to the Mégane line-up.  Available for the Hatch, Coupé,
Sport Tourer and Coupé-Cabriolet versions of New Mégane, this new
specification includes a sports chassis setting, new GT-design front
and rear bumpers, 18-inch wheels, Renaultsport 250-specification seats
with specific GT upholstery and additional lateral support,
Renaultsport 250-style steering wheel, aluminium pedal set and a dark
charcoal interior trim with polished carbon highlights, rear parking
sensors and bespoke badging on the grille and boot lid.
The GT versions bridge the gap between the Privilege versions and
Renaultsport are exclusively available with the TCe 180 petrol engine
or the powerful, high-torque dCi 160 diesel powerplant.
Customers wanting the GT look with a smaller engine and price tag
can have the GT-Line option pack fitted to the Dynamique trim level for
just £1,290.  This features a sports chassis, 17-inch alloy wheels, GT
front and rear bumpers, anthracite door mirrors and the Renaultsport
250-specification seats with specific GT upholstery and extra lateral
support.  
Nine body colours are available in total for these new versions:

  • Malta Blue is reserved exclusively for GT and GT Line versions of the Mégane range,
  • three colours are exclusively available for Mégane Hatch, Coupé and Sport Tourer: Cayenne Orange, Glacier White and Mercury,
  • two colours are specific to Mégane Coupé-Cabriolet: Pearlescent White and Royal Blue,
  • three colours are available for all four body styles: Ruby Red, Pearlescent Black and Eclipse dark grey.
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Optional equipment includes metallic paint (£405), Malta Blue or
Cayenne Orange i.d. paint (£495), extra-tinted rear windows (£205),
dual-zone climate control (£410), heated front seats (£305), electric
panoramic sunroof (£615), leather upholstery (£920), bi-xenon headlamps
(£665), Carminat TomTom satellite navigation (£460) and the Arkamys 3D
sound radio with multifunctional TunePoint (£360).

Model CO2 g/km Combined MPG OTR Price
Hatch GT TCe 180 178 37.2 £21,910
Hatch GT dCi 160 155 47.8 £22,975
Coupé GT TCe 180 178 37.2 £22,410
Coupé GT dCi 160 155 47.8 £23,475
Sport Tourer GT TCe 180 178 37.2 £22,910
Sport Tourer GT dCi 160 155 47.8 £23,975
Source: Renault