<blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:<hr /><font size="1" face="Verdana, Helvetica, sans-serif">Originally posted by Wisrute B.:
<strong>Aerodynamics are likely to affect top speed, rather than 0-60 times. I think both 156 and 147 (2.0TS) have the same gear ratios, but it could be the extra weight on the 147 that makes it slightly slower. Or it could just marketing gimmick to make the 156 a little more 'premium.'</strong><hr /></blockquote><font size="1" face="Verdana, Helvetica, sans-serif">AFAIK a standard 147 won't make 62mph in 2nd gear, the 156 just makes it. Also the price difference between the 147 and 156 is partly due to the weight saving materials used in the 156. This probably accounts for the 0-62 difference and the aerodynamics for the top speed.
As for the 155bhp/150bhp 156's.......
Although its thought that the 155bhp was phased out mid 2000 (It was for the UK) the engine was still produced and fitted for some markets until mid 2001. My car is an EU import built in May 01 registered Sept 01 on a 51 plate and is a 155bhp version.
Easy way to tell is the 155bhp version has a 4 into 2 into 1 exhaust manifold under a small heat shield with a cat in the centre of the exhaust. The 150bhp version has a cat in the exhaust manifold under a big heat shield.
You will only notice a slight difference in the two at the very top end of the revs. 0-62mph is 0.2 sec quicker in the 155bhp.
IMO the biggest difference is the noise, the 155bhp version with a proper exhaust manifold sounds more raspy and tune full than the manifold cat version.